![Webusb扫描文件]( "Webusb扫描文件")
本文介绍了Webusb扫描文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 有人成功配置了webusb来扫描文档？我能够连接到USB扫描仪，但无法找到任何关于扫描文档的命令的文档： $ lsusb -v 总线001设备007：ID 1083：163e Canon Electronics，Inc. 设备描述符： bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0（定义在接口级别） bDeviceSubClass 0 bDeviceProtocol 1 bMaxPacketSize0 64 idVendor 0x1083 Canon Electronics，Inc. idProduct 0x163e bcdDevice 2.02 iManufacturer 1 CANON iProduct 2 CANON DR-M160 iSerial 0 bNumConfigurations 1 配置描述符： bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurat ionValue 1 iConfiguration 0 bmAttributes 0xc0 自供电 MaxPower 98mA 接口描述符： bLength 9 bDescriptorType 4 b接口编号0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 0（定义于接口级） bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 端点描述符： bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 传输类型批量同步类型无使用类型数据 wMaxPacketSize 0x0200 1x 512字节 bInterval 0 端点描述符： bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 传输类型批量同步类型无使用类型数据 wMaxPacketSize 0x0200 1x 512字节 bInterval 0 端点描述符： bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 传输类型中断同步类型无使用类型数据 wMaxPacketSize 0x0040 1x 64字节间隔6 设备限定符（用于其他设备速度）： bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 （定义在接口级别） bDeviceSubClass 0 bDeviceProtocol 1 bMaxPacketSize0 64 bNumConfigurations 1 设备状态：0x0001 自动驱动 下面的代码测试低级别的传输，但即使PromiseStatus标记为已解决，状态仍然失效，device.transferIn状态保留悬而未决。我无法继续前进，因为我没有找到任何有关我的扫描仪或任何其他扫描仪的文档。 navigator。 usb.requestDevice（{filters：[{vendorId：0x1083}]}） .then（selectedDevice => { device = selectedDevice; return device.open（）; // Begin （（）=> device.selectConfiguration（1）） .then（（）=> device.claimInterface（0）） .then（（）=> device.controlTransferOut（{ requestType：'vendor'， recipient：'device'， request：0x22， value：0x01， index：0x01}）） .then（（）=> device.transferIn（1,64））//等待来自端点＃1的64个字节的数据。 .then（result => { let decoder = new TextDecoder（）; console.log（'Received：'+ decoder.decode（result.data））; }） .catch（error => {console.log（error）;}）; 谢谢！ 解决方案 我试图通过WebUSB扫描CanoScan LiDE 25，它使用plustek芯片。 c> // http://www.linux-usb.org/usb.ids // 04a9 Canon，Inc. // 2200 CanoScan LiDE 25 navigator.usb.requestDevice（ （过滤器：[{vendorId：0x04a9}]}） .then（device => { console.log（device.productName）; //CanonScan console.log device.manufacturerName）; //Canon}） .catch（error => {console.log（error）;}）; 我目前尝试使用wireshark和USBMon对协议进行逆向工程。理智家伙已经做到了这一点（ 在上图中，您可以看到Wireshark和命令的追踪： export SANE_DEBUG_DLL = 255＃已启用调试日志记录为 scanimage -p --resolution 150 --mode Gray -x 210 -y 297> image.pnm 这并不能回答你的问题。尽管如此，它仍然显示出前进的方向。 我希望最具创新性的东西是用emscripten（ https://github.com/kripken/emscripten ）转换为javascript，然后直接使用它。 $ export SANE_DEBUG_PLUSTEK = 12 $ scanimage -L [sanei_debug]将dll的调试级别设置为0. [sanei_debug]将plustek的调试级别设置为12. [plustek] Plustek后端V0.52-12 ，部分理智后端1.0.25git [plustek]检索所有支持和连接的设备 [plustek]可用和支持的设备： [plustek]设备：> libusb：001：008<< ; - 0x04a9x0x2220 [plustek]>＃Plustek-SANE后端配置文件< [plustek]>＃用于基于LM9831 / 2/3的USB扫描仪< [plustek]>＃< [plustek]>< [plustek]>＃每个设备至少需要两行：< [plustek]>＃ - [usb]供应商ID和产品ID< [plustek]>＃ - 设备设备名称< [plustek]>＃即对于Plustek（0x07B3）UT12 / 16/24（0x0017）< [plustek]>＃[usb] 0x07B3 0x0017< [plustek]>＃device / dev / usbscanner< [plustek]>＃或 [plustek]>＃device libusb：bbb：ddd< [plustek]>＃其中bbb是总线编号，ddd是器件编号< [plustek]>＃确保您的用户可以访问/ proc / bus / usb / bbb / ddd< [plustek]>＃< [plustek]>＃另外你可以指定一些选项< [plustek]>＃预热，10ffOnEnd，lampOff< [plustek]>＃< [plustek]>＃对于自动检测，使用< [plustek]>＃[usb]< [plustek]>＃device / dev / usbscanner< [plustek]>＃< [plustek]>＃或简单地< [plustek]>＃[usb]< [plustek]>＃< [plustek]>＃或者如果你想要一个特定的设备，但你不知道< [plustek]>＃设备节点，或者您使用libusb，只需设置供应商和产品ID< [plustek]>＃[usb] 0x07B3 0x0017< [plustek]>＃设备自动< [plustek]>＃< [plustek]>＃注意：自动检测是安全的，因为它使用它获得的信息< [plustek]>＃来自USB子系统。如果你没有使用< [plustek]>＃自动检测，您必须已经附加了该设备< [plustek]>＃在您的USB端口上，您已指定...<< [plustek]>＃< [plustek]>< [plustek]> [usb]< [plustek] next device uses autodetection [plustek] ... next device [plustek]>< [plustek]>＃< [plustek]>以前的USB条目的＃个选项< [plustek]>＃<在xxx秒后关闭 [plustek]>＃开关灯，0禁用特征< [plustek]>＃（也可以通过前端设置）< [plustek]> option lampOff 300< [plustek]解码选项> lampOff< [plustek]>< [plustek]>＃以秒为单位的暖机期，0表示不暖机，-1表示自动预热< [plustek]>＃（也可以通过前端设置）< [plustek]>选项预热-1< [plustek]解码选项>热身< [plustek]>< [plustek]>＃0意味着保持灯状态不变，不是0意味着关闭< [plustek]>＃on sane_close< [plustek]>＃（也可以通过前端设置）< [plustek]>选项10ffOnEnd 1< [plustek]解码选项> 10ffOnEnd< [plustek]>< [plustek]>＃< [plustek]>＃选项来调整图片的开始位置< [plustek]>＃（警告：没有内部范围检查!!!）< [plustek]>＃< [plustek]>＃对于正常扫描区域< [plustek]>＃< [plustek]>选项posOffX 0< [plustek]解码选项> posOffX< [plustek]>选项posOffY 0< [plustek]解码选项> posOffY< [plustek]>< [plustek]>＃用于透明胶片< [plustek]>选项tpaOffX 0< [plustek]解码选项> tpaOffX< [plustek]>选项tpaOffY 0< [plustek]解码选项> tpaOffY< [plustek]>< [plustek]>＃用于底片< [plustek]>选项negOffX 0< [plustek]解码选项> negOffX< [plustek]>选项negOffY 0< [plustek]解码选项> negOffY< [plustek]>< [plustek]>＃< [plustek]>＃用于设置校准条位置< [plustek]>＃（警告：没有内部范围检查!!!）< [plustek]>＃-1表示使用内置的< [plustek]>＃（也可以通过前端设置）< [plustek]>选项posShadingY -1< [plustek]解码选项> posShadingY< [plustek]>选项tpaShadingY -1< [plustek]解码选项> tpaShadingY< [plustek]>选项negShadingY -1< [plustek]解码选项> negShadingY< [plustek]>< [plustek]>＃< [plustek]>＃来反转底片，0禁用特征< [plustek]>＃< [plustek]>选项invertNegatives 0< [plustek]解码选项> invertNegatives< [plustek]>< [plustek]>＃< [plustek]>＃禁用内部传感器加速功能，< [plustek]>＃1禁用特征< [plustek]>＃< [plustek]>选项disableSpeedup 0< [plustek]解码选项> disableSpeedup< [plustek]>< [plustek]>＃< [plustek]>＃保存/恢复粗略校准数据< [plustek]>＃（也可以通过前端设置）< [plustek]>选项cacheCalData 0< [plustek]解码选项> cacheCalData< [plustek]>< [plustek]>＃< [plustek]>＃使用备用校准程序< [plustek]>＃< [plustek]>选项altCalibration 0< [plustek]解码选项> altCalibration< [plustek]>< [plustek]>＃< [plustek]>＃用于跳过整个校准步骤< [plustek]>＃< [plustek]>选项skipCalibration 0< [plustek]解码选项> skipCalibration< [plustek]>< [plustek]>＃< [plustek]>＃用于跳过整个精确校准步骤< [plustek]>＃粗略校准完成< [plustek]>＃< [plustek]>选项skipFine 0< [plustek]解码选项> skipFine< [plustek]>< [plustek]>＃< [plustek]>＃丢弃精细白色校准的结果< [plustek]>＃< [plustek]>选项skipFineWhite 0< [plustek]解码选项> skipFineWhite< [plustek]>< [plustek]>＃< [plustek]>＃一些扫描仪有一个黑暗的校准条，在< [plustek]>＃general这个应该用于校准。< [plustek]>＃因为这可能会导致一些麻烦，所以这个选项< [plustek]>＃覆盖那个，暗校准将是< [plustek]>＃通过关闭灯来完成< [plustek]>＃< [plustek]>选项skipDarkStrip 0< [plustek]解码选项> skipDarkStrip< [plustek]>< [plustek]>＃用于替换在粗略< [plustek]>＃校准< [plustek]>＃（也可以通过前端设置）< [plustek]> option red_gain -1< [plustek]解码选项> red_gain< [plustek]> option green_gain -1< [plustek]解码选项> green_gain< [plustek]> option blue_gain -1< [plustek]解码选项> blue_gain< [plustek]>< [plustek]>＃用于替换在粗略< [plustek]>＃校准< [plustek]>＃（也可以通过前端设置）< [plustek]> option red_offset -1< [plustek]解码选项> red_offset< [plustek]>选项green_offset -1< [plustek]解码选项> green_offset< [plustek]> option blue_offset -1< [plustek]解码选项> blue_offset< [plustek]>< [plustek]>＃< [plustek]>＃代替默认的灯泡设置，这个< [plustek]>＃仅适用于CIS设备，如CanoScan LiDE20< [plustek]>＃（也可以通过前端设置）< [plustek]> option red_lampoff -1< [plustek]解码选项> red_lampoff< [plustek]> option green_lampoff -1< [plustek]解码选项> green_lampoff< [plustek]> option blue_lampoff -1< [plustek]解码选项> blue_lampoff< [plustek]>< [plustek]>＃< [plustek]>＃用于调整默认伽玛值< [plustek]>＃（也可以通过前端设置）< [plustek]>选项redGamma 1.0< [plustek]解码选项> redGamma< [plustek]>选项greenGamma 1.0< [plustek]解码选项> greenGamma< [plustek]> option blueGamma 1.0< [plustek]解码选项> blueGamma< [plustek]>选项grayGamma 1.0< [plustek]解码选项> grayGamma< [plustek]>< [plustek]>＃< [plustek]>＃启用TPA（如果自动检测失败，则为EPSON或UMAX）< [plustek]>＃0表示如在内部表中指定的默认行为< [plustek]>＃1表示启动（UMAX 3450需要）< [plustek]>选项enableTPA 0< [plustek]解码选项> enableTPA< [plustek]>< [plustek]>＃< [plustek]>＃模型覆盖功能，目前仅适用于< [plustek]>＃Mustek设备，使用NSC的供应商ID：0x0400和< [plustek]>＃它们的产品ID：0x1000（LM9831）0x1001（LM9832）< [plustek]>＃< [plustek]>＃mov / PID | 0x1000 | 0x1001< [plustek]>＃---------------------------------------< ; [plustek]>＃0（默认）| BearPaw1200 | BearPaw 2400< [plustek]>＃1 |忽略| BearPaw 1200< [plustek]>＃< [plustek]>选项mov 0< [plustek]解码选项> mov< [plustek]>< [plustek]>＃< [plustek]>＃，当然还有设备名称< [plustek]>＃< [plustek]>＃device / dev / usbscanner< [plustek]>设备自动< [plustek]解码设备名称>自动< [plustek]>< [plustek]>＃< [plustek]>＃来定义一个新设备，从一个新的部分开始：< [plustek]>＃[usb]< [plustek]>＃< [plustek] attach（auto，0x7ffdc9adc760，（nil）） [plustek]设备配置： [plustek]设备名称：> auto< [plustek] USB-ID：>< [plustek]型号ovr。 ：0 [plustek]热身：-1s [plustek] lamp off：300 [plustek] lampOffOnEnd：yes [plustek] cacheCalData：no [plustek] altCalibrate：no [plustek] skipCalibr。 ：no [plustek] skipFine：no [plustek] skipFineWhite：no [plustek] skipDarkStrip：no [plustek] incDarkTarget：是 [plustek] invertNegs 。 ：no [plustek] dis.Speedup：no [plustek] pos_x：0 [plustek] pos_y：0 [plustek] pos_shading_y：-1 [ plustek] neg_x：0 [plustek] neg_y：0 [plustek] neg_shading_y：-1 [plustek] tpa_x：0 [plustek] tpa_y：0 [plustek] tpa_shading_y：-1 [plustek]红色增益：-1 [plustek]绿色增益：-1 [plustek]蓝色增益：-1 [plustek]红色偏移：-1 [plustek]绿色偏移：-1 [plustek]蓝色偏移：-1 [plustek]红色指示灯：-1 [plustek]绿色指示灯：-1 [plustek] blue lampoff：-1 [plustek]红色伽马值：1.00 [plustek]绿色伽玛值：1.00 [plustek]蓝色伽玛值：1.00 [plustek]灰色Gamma：1.00 [plustek] --------------------- [plustek] usbDev_open（auto，） - 0x5555ca4dbe90 [plustek]供应商ID = 0x04A9，产品ID = 0x2220 [plustek] usbio_DetectLM983x [plustek] usbio_DetectLM983x：找到LM9832 / 3 [plust ek] *将设备设置为空闲状态！ [plustek]检测到的供应商&产品ID：0x04A9-0x2220 [plustek]> 0x04A9-0x2220的设备描述<找到。 [plustek] usb_initDev（44x04a9，-1） [plustek]设备WAF：0x00004002 [plustek]传输速率：1000000 Bytes / s [plustek]设备标志： 0x00000000 [plustek]供应商调整为：> Canon< [plustek] LAMP-STATUS：0x00000000（off） [plustek]复位寄存器（-1） - 0x80 [plustek]复位后的MISC I / O：0x66，0x16，0x91 [plustek]校准文件名称设置为： [plustek]> /home/manuel/.sane/Canon_CanoScan_LiDE25-coarse.cal< [plustek]> /home/manuel/.sane/Canon_CanoScan_LiDE25-fine.cal< [plustek] usb_SetScanParameters（） [plustek] usb_GetMCLKDivider（） [plustek] usb_GetMCLKDiv（） [plustek] * PhyBytes = 6 [plustek] * PhyLines = 4 [plustek] * TotalBytes = 24 [plustek] * Scansteps = 72（9 * 1200/150） [plustek] usb_SetScanParameters（）完成。 [plustek] usbDev_getCaps（） [plustek]扫描仪信息： [plustek]供应商：Canon [plustek]型号：CanoScan LiDE25 [plustek]标志： 0x00000000 [plustek] drvclose（） [plustek] usbDev_stopScan（） [plustek] usbDev_ScanEnd（），start = 0，park = 0 [plustek] usbDev_close（） [plustek] attach：model => CanoScan LiDE25< [plustek] sane_get_devices（0x7ffdc9ade8e0，0）设备`plustek：libusb：001：008'是佳能CanoScan LiDE25平板扫描仪 [plustek] sane_exit [plustek]关机被称为（dev-> fd = -1，libusb：001：008） [plustek]等待扫描仪就绪... [plustek]开关灯熄灭... [加灯]灯泡状态：0x00000000（off） [plustek]灯泡状态：0x00000000（关闭） [plustek]灯泡定时器停止 $ b 这是扫描时的输出 scanimage -p - 分辨率150 - 模式灰色-x 210 -y 297> image.pnm [sanei_debug]设置dll的调试级别为0. [sanei_debug]设置plustek的调试级别为12. [plustek] Plustek后端V0.52-12，属于sane-backends 1.0.25git [plustek]检索所有支持和连接的设备 [plustek]可用和支持的设备： [plustek]设备：> libusb：001：008< - 0x04a9x0x2220 [plustek]>＃Plustek-SANE后端配置文件< [plustek]>＃用于基于LM9831 / 2/3的USB扫描仪< [plustek]>＃< [plustek]>< [plustek]>＃每个设备至少需要两行：< [plustek]>＃ - [usb]供应商ID和产品ID< [plustek]>＃ - 设备设备名称< [plustek]>＃即对于Plustek（0x07B3）UT12 / 16/24（0x0017）< [plustek]>＃[usb] 0x07B3 0x0017< [plustek]>＃device / dev / usbscanner< [plustek]>＃或 [plustek]>＃device libusb：bbb：ddd< [plustek]>＃其中bbb是总线编号，ddd是器件编号< [plustek]>＃确保您的用户可以访问/ proc / bus / usb / bbb / ddd< [plustek]>＃< [plustek]>＃另外你可以指定一些选项< [plustek]>＃预热，10ffOnEnd，lampOff< [plustek]>＃< [plustek]>＃对于自动检测，使用< [plustek]>＃[usb]< [plustek]>＃device / dev / usbscanner< [plustek]>＃< [plustek]>＃或简单地< [plustek]>＃[usb]< [plustek]>＃< [plustek]>＃或者如果你想要一个特定的设备，但你不知道< [plustek]>＃设备节点，或者您使用libusb，只需设置供应商和产品ID< [plustek]>＃[usb] 0x07B3 0x0017< [plustek]>＃设备自动< [plustek]>＃< [plustek]>＃注意：自动检测是安全的，因为它使用它获得的信息< [plustek]>＃来自USB子系统。如果你没有使用< [plustek]>＃自动检测，您必须已经附加了该设备< [plustek]>＃在您的USB端口上，您已指定...<< [plustek]>＃< [plustek]>< [plustek]> [usb]< [plustek] next device uses autodetection [plustek] ... next device [plustek]>< [plustek]>＃< [plustek]>以前的USB条目的＃个选项< [plustek]>＃<在xxx秒后关闭 [plustek]>＃开关灯，0禁用特征< [plustek]>＃（也可以通过前端设置）< [plustek]> option lampOff 300< [plustek]解码选项> lampOff< [plustek]>< [plustek]>＃以秒为单位的暖机期，0表示不暖机，-1表示自动预热< [plustek]>＃（也可以通过前端设置）< [plustek]>选项预热-1< [plustek]解码选项>热身< [plustek]>< [plustek]>＃0意味着保持灯状态不变，不是0意味着关闭< [plustek]>＃on sane_close< [plustek]>＃（也可以通过前端设置）< [plustek]>选项10ffOnEnd 1< [plustek]解码选项> 10ffOnEnd< [plustek]>< [plustek]>＃< [plustek]>＃选项来调整图片的开始位置< [plustek]>＃（警告：没有内部范围检查!!!）< [plustek]>＃< [plustek]>＃对于正常扫描区域< [plustek]>＃< [plustek]>选项posOffX 0< [plustek]解码选项> posOffX< [plustek]>选项posOffY 0< [plustek]解码选项> posOffY< [plustek]>< [plustek]>＃用于透明胶片< [plustek]>选项tpaOffX 0< [plustek]解码选项> tpaOffX< [plustek]>选项tpaOffY 0< [plustek]解码选项> tpaOffY< [plustek]>< [plustek]>＃用于底片< [plustek]>选项negOffX 0< [plustek]解码选项> negOffX< [plustek]>选项negOffY 0< [plustek]解码选项> negOffY< [plustek]>< [plustek]>＃< [plustek]>＃用于设置校准条位置< [plustek]>＃（警告：没有内部范围检查!!!）< [plustek]>＃-1表示使用内置的< [plustek]>＃（也可以通过前端设置）< [plustek]>选项posShadingY -1< [plustek]解码选项> posShadingY< [plustek]>选项tpaShadingY -1< [plustek]解码选项> tpaShadingY< [plustek]>选项negShadingY -1< [plustek]解码选项> negShadingY< [plustek]>< [plustek]>＃< [plustek]>＃来反转底片，0禁用特征< [plustek]>＃< [plustek]>选项invertNegatives 0< [plustek]解码选项> invertNegatives< [plustek]>< [plustek]>＃< [plustek]>＃禁用内部传感器加速功能，< [plustek]>＃1禁用特征< [plustek]>＃< [plustek]>选项disableSpeedup 0< [plustek]解码选项> disableSpeedup< [plustek]>< [plustek]>＃< [plustek]>＃保存/恢复粗略校准数据< [plustek]>＃（也可以通过前端设置）< [plustek]>选项cacheCalData 0< [plustek]解码选项> cacheCalData< [plustek]>< [plustek]>＃< [plustek]>＃使用备用校准程序< [plustek]>＃< [plustek]>选项altCalibration 0< [plustek]解码选项> altCalibration< [plustek]>< [plustek]>＃< [plustek]>＃用于跳过整个校准步骤< [plustek]>＃< [plustek]>选项skipCalibration 0< [plustek]解码选项> skipCalibration< [plustek]>< [plustek]>＃< [plustek]>＃用于跳过整个精确校准步骤< [plustek]>＃粗略校准完成< [plustek]>＃< [plustek]>选项skipFine 0< [plustek]解码选项> skipFine< [plustek]>< [plustek]>＃< [plustek]>＃丢弃精细白色校准的结果< [plustek]>＃< [plustek]>选项skipFineWhite 0< [plustek]解码选项> skipFineWhite< [plustek]>< [plustek]>＃< [plustek]>＃一些扫描仪有一个黑暗的校准条，在< [plustek]>＃general这个应该用于校准。< [plustek]>＃因为这可能会导致一些麻烦，所以这个选项< [plustek]>＃覆盖那个，暗校准将是< [plustek]>＃通过关闭灯来完成< [plustek]>＃< [plustek]>选项skipDarkStrip 0< [plustek]解码选项> skipDarkStrip< [plustek]>< [plustek]>＃用于替换在粗略< [plustek]>＃校准< [plustek]>＃（也可以通过前端设置）< [plustek]> option red_gain -1< [plustek]解码选项> red_gain< [plustek]> option green_gain -1< [plustek]解码选项> green_gain< [plustek]> option blue_gain -1< [plustek]解码选项> blue_gain< [plustek]>< [plustek]>＃用于替换在粗略< [plustek]>＃校准< [plustek]>＃（也可以通过前端设置）< [plustek]> option red_offset -1< [plustek]解码选项> red_offset< [plustek]>选项green_offset -1< [plustek]解码选项> green_offset< [plustek]> option blue_offset -1< [plustek]解码选项> blue_offset< [plustek]>< [plustek]>＃< [plustek]>＃代替默认的灯泡设置，这个< [plustek]>＃仅适用于CIS设备，如CanoScan LiDE20< [plustek]>＃（也可以通过前端设置）< [plustek]> option red_lampoff -1< [plustek]解码选项> red_lampoff< [plustek]> option green_lampoff -1< [plustek]解码选项> green_lampoff< [plustek]> option blue_lampoff -1< [plustek]解码选项> blue_lampoff< [plustek]>< [plustek]>＃< [plustek]>＃用于调整默认伽玛值< [plustek]>＃（也可以通过前端设置）< [plustek]>选项redGamma 1.0< [plustek]解码选项> redGamma< [plustek]>选项greenGamma 1.0< [plustek]解码选项> greenGamma< [plustek]> option blueGamma 1.0< [plustek]解码选项> blueGamma< [plustek]>选项grayGamma 1.0< [plustek]解码选项> grayGamma< [plustek]>< [plustek]>＃< [plustek]>＃启用TPA（如果自动检测失败，则为EPSON或UMAX）< [plustek]>＃0表示如在内部表中指定的默认行为< [plustek]>＃1表示启动（UMAX 3450需要）< [plustek]>选项enableTPA 0< [plustek]解码选项> enableTPA< [plustek]>< [plustek]>＃< [plustek]>＃模型覆盖功能，目前仅适用于< [plustek]>＃Mustek设备，使用NSC的供应商ID：0x0400和< [plustek]>＃它们的产品ID：0x1000（LM9831）0x1001（LM9832）< [plustek]>＃< [plustek]>＃mov / PID | 0x1000 | 0x1001< [plustek]>＃---------------------------------------< ; [plustek]>＃0（默认）| BearPaw1200 | BearPaw 2400< [plustek]>＃1 |忽略| BearPaw 1200< [plustek]>＃< [plustek]>选项mov 0< [plustek]解码选项> mov< [plustek]>< [plustek]>＃< [plustek]>＃，当然还有设备名称< [plustek]>＃< [plustek]>＃device / dev / usbscanner< [plustek]>设备自动< [plustek]解码设备名称>自动< [plustek]>< [plustek]>＃< [plustek]>＃来定义一个新设备，从一个新的部分开始：< [plustek]>＃[usb]< [plustek]>＃< [plustek] attach（auto，0x7ffeffed9fa0，（nil）） [plustek]设备配置： [plustek]设备名称：> auto< [plustek] USB-ID：>< [plustek]型号ovr。 : 0 [plustek] warmup : -1s [plustek] lampOff : 300 [plustek] lampOffOnEnd : yes [plustek] cacheCalData : no [plustek] altCalibrate : no [plustek] skipCalibr. : no [plustek] skipFine : no [plustek] skipFineWhite: no [plustek] skipDarkStrip: no [plustek] incDarkTarget: yes [plustek] invertNegs. : no [plustek] dis.Speedup : no [plustek] pos_x : 0 [plustek] pos_y : 0 [plustek] pos_shading_y: -1 [plustek] neg_x : 0 [plustek] neg_y : 0 [plustek] neg_shading_y: -1 [plustek] tpa_x : 0 [plustek] tpa_y : 0 [plustek] tpa_shading_y: -1 [plustek] red gain : -1 [plustek] green gain : -1 [plustek] blue gain : -1 [plustek] red offset : -1 [plustek] green offset : -1 [plustek] blue offset : -1 [plustek] red lampoff : -1 [plustek] green lampoff: -1 [plustek] blue lampoff : -1 [plustek] red Gamma : 1.00 [plustek] green Gamma : 1.00 [plustek] blue Gamma : 1.00 [plustek] gray Gamma : 1.00 [plustek] --------------------- [plustek] usbDev_open(auto,) - 0x55e6fbc6e5a0 [plustek] Vendor ID=0x04A9, Product ID=0x2220 [plustek] usbio_DetectLM983x [plustek] usbio_DetectLM983x: found LM9832/3 [plust ek] * setting device to idle state! [plustek] Detected vendor & product ID: 0x04A9-0x2220 [plustek] Device description for >0x04A9-0x2220<找到。 [plustek] usb_initDev(43,0x04a9,-1) [plustek] Device WAF : 0x00004002 [plustek] Transferrate: 1000000 Bytes/s [plustek] Device Flags: 0x00000000 [plustek] Vendor adjusted to: >Canon< [plustek] LAMP-STATUS: 0x00000000 (off) [plustek] RESETTING REGISTERS(-1) - 0x80 [plustek] MISC I/O after RESET: 0x66, 0x16, 0x91 [plustek] Calibration file-names set to: [plustek] >/home/manuel/.sane/Canon_CanoScan_LiDE25-coarse.cal< [plustek] >/home/manuel/.sane/Canon_CanoScan_LiDE25-fine.cal< [plustek] usb_SetScanParameters() [plustek] usb_GetMCLKDivider() [plustek] usb_GetMCLKDiv() [plustek] * PhyBytes = 6 [plustek] * PhyLines = 4 [plustek] * TotalBytes = 24 [plustek] * Scansteps=72 (9*1200/150) [plustek] usb_SetScanParameters() done. [plustek] usbDev_getCaps() [plustek] Scanner information: [plustek] Vendor : Canon [plustek] Model : CanoScan LiDE25 [plustek] Flags : 0x00000000 [plustek] drvclose() [plustek] usbDev_stopScan() [plustek] usbDev_ScanEnd(), start=0, park=0 [plustek] usbDev_close() [plustek] attach: model = >CanoScan LiDE25< [plustek] sane_get_devices (0x7ffeffedc120, 0) [plustek] sane_open - libusb:001:008 [plustek] Presetting Gamma tables (len=4096) [plustek] * Channel[0], gamma 2.000 [plustek] * Channel[1], gamma 2.000 [plustek] * Channel[2], gamma 2.000 [plustek] * Channel[3], gamma 2.000 [plustek] ---------------------------------- [plustek] sane_start [plustek] usbDev_open(libusb:001:008,) - (nil) [plustek] Vendor ID=0x04A9, Product ID=0x2220 [plustek] usbio_DetectLM983x [plustek] usbio_DetectLM983x: found LM9832/3 [plustek] Detected vendor & product ID: 0x04A9-0x2220 [plustek] Device description for >0x04A9-0x2220<找到。 [plustek] usb_initDev(43,0x04a9,43) [plustek] Device WAF : 0x00004002 [plustek] Transferrate: 1000000 Bytes/s [plustek] Device Flags: 0x00000006 [plustek] Vendor adjusted to: >Canon< [plustek] LAMP-STATUS: 0x00000000 (off) [plustek] RESETTING REGISTERS(43) - 0x80 [plustek] MISC I/O after RESET: 0x66, 0x16, 0x91 [plustek] usbDev_getCaps() [plustek] scanmode = 1 [plustek] usbDev_getCropInfo() [plustek] usb_GetImageInfo() [plustek] PPL = 1240 [plustek] LPA = 1753 [plustek] BPL = 1240 [plustek] brightness 0, contrast 0 [plustek] usbDev_setScanEnv() [plustek] usb_SaveImageInfo() [plustek] * dwFlag = 0x00000400 [plustek] usb_GetImageInfo() [plustek] * Preview Mode NOT set! [plustek] Setting map[3] at 0x55e6fbcf7254 [plustek] usbDev_startScan() [plustek] LAMP-STATUS: 0x00000000 (off) [plustek] Switching Lamp on [plustek] Warmup-Timer started [plustek] LAMP-STATUS: 0x00000001 (on) [plustek] Lamp-Timer stopped [plustek] dwflag = 0x40000400 dwBytesLine = 1240 [plustek] Lines = 1753 [plustek] Bytes per Line = 1240 [plustek] Bitdepth = 8 [plustek] TIME START [plustek] local_sane_start done [plustek] reader_process started (as thread) [plustek] reader_process:starting to READ data (2173720 bytes) [plustek] buf = 0x7f1864447010 [plustek] usbDev_PrepareScan() [plustek] sane_start done [plustek] cano_DoCalibration() [plustek] ######################### [plustek] usb_SpeedTest(43,1000000) [plustek] GETMCLK[10/1], using entry 8: 12.000, 1200 [plustek] SETMCLK[10/1]: 12.000 [plustek] usb_SetScanParameters() [plustek] usb_GetMCLKDi vider() [plustek] usb_GetMCLKDiv() [plustek] * PhyBytes = 30606 [plustek] * PhyLines = 1 [plustek] * TotalBytes = 30606 [plustek] usb_SetScanParameters() done. [plustek] usb_ScanBegin() [plustek] usb_DownloadShadingData(1) [plustek] usb_ScanBegin() done. [plustek] usb_IsDataAvailableInDRAM() [plustek] Data is available [plustek] usbDev_ScanEnd(), start=1, park=0 [plustek] usb_SetScanParameters() [plustek] usb_GetMCLKDivider() [plustek] usb_GetMCLKDiv() [plustek] * PhyBytes = 30606 [plustek] * PhyLines = 1 [plustek] * TotalBytes = 30606 [plustek] usb_SetScanParameters() done. [plustek] usb_ScanBegin() [plustek] usb_DownloadShadingData(1) [plustek] usb_ScanBegin() done. [plustek] usb_IsDataAvailableInDRAM() [plustek] Data is available [plustek] usbDev_ScanEnd(), start=1, park=0 [plustek] usb_SetScanParameters() [plustek] usb_GetMCLKDivider() [plustek] usb_GetMCLKDiv()... Hope that helps a little bit Manuel Anybody had successfully configured webusb to scan a document ? I am able to connect to the usb scanner but wasn't able to find any documentation on commands to scan documents :$lsusb -v Bus 001 Device 007: ID 1083:163e Canon Electronics, Inc. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 1 bMaxPacketSize0 64 idVendor 0x1083 Canon Electronics, Inc. idProduct 0x163e bcdDevice 2.02 iManufacturer 1 CANON iProduct 2 CANON DR-M160 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 98mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 0 (Defined at Interface level) bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 6Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 1 bMaxPacketSize0 64 bNumConfigurations 1Device Status: 0x0001 Self PoweredThe code below test a low level transfer, however even the PromiseStatus is marked as resolved, status is stall and device.transferIn status remain pending. I wasn't able to go further as I didn't find any documentation for my scanner or any other scanner.navigator.usb.requestDevice({ filters: [{ vendorId: 0x1083 }] }).then(selectedDevice => { device = selectedDevice; return device.open(); // Begin a session. }).then(() => device.selectConfiguration(1)) .then(() => device.claimInterface(0)) .then(() => device.controlTransferOut({ requestType: 'vendor', recipient: 'device', request: 0x22, value: 0x01, index: 0x01})) .then(() => device.transferIn(1, 64)) // Waiting for 64 bytes of data from endpoint #1..then(result => { let decoder = new TextDecoder(); console.log('Received: ' + decoder.decode(result.data));}).catch(error => { console.log(error); });Thank you ! 解决方案 I am trying to get scanning over WebUSB working with a CanoScan LiDE 25. It uses a plustek chip.// http://www.linux-usb.org/usb.ids// 04a9 Canon, Inc.// 2200 CanoScan LiDE 25navigator.usb.requestDevice({ filters: [{ vendorId: 0x04a9 }] }).then(device => { console.log(device.productName); // "CanonScan" console.log(device.manufacturerName); // "Canon"}).catch(error => { console.log(error); });I currently try to reverse engineer the protocol with wireshark and USBMon. The guys from sane already did that (https://gitlab.com/sane-project/backends/blob/master/backend/plustek.c)In the picture above you can see a trace with Wireshark and the command:export SANE_DEBUG_DLL=255 # enabled debug logging for sanescanimage -p --resolution 150 --mode Gray -x 210 -y 297 > image.pnmThis does not answer your question. Nevertheless it shows the way to go.I would expect that the most innovate thing would be to compile sane with emscripten (https://github.com/kripken/emscripten) into javascript and then directly use it.Here is some more debugging output, when enabling the debugging log of the plustek driver:$ export SANE_DEBUG_PLUSTEK=12$ scanimage -L[sanei_debug] Setting debug level of dll to 0.[sanei_debug] Setting debug level of plustek to 12.[plustek] Plustek backend V0.52-12, part of sane-backends 1.0.25git[plustek] Retrieving all supported and conntected devices[plustek] Available and supported devices:[plustek] Device: >libusb:001:008< - 0x04a9x0x2220[plustek] ># Plustek-SANE Backend configuration file<[plustek] ># For use with LM9831/2/3 based USB scanners<[plustek] >#<[plustek] ><[plustek] ># each device needs at least two lines:<[plustek] ># - [usb] vendor-ID and product-ID<[plustek] ># - device devicename<[plustek] ># i.e. for Plustek (0x07B3) UT12/16/24 (0x0017)<[plustek] ># [usb] 0x07B3 0x0017<[plustek] ># device /dev/usbscanner<[plustek] ># or<[plustek] ># device libusb:bbb:ddd<[plustek] ># where bbb is the busnumber and ddd the device number<[plustek] ># make sure that your user has access to /proc/bus/usb/bbb/ddd<[plustek] >#<[plustek] ># additionally you can specify some options<[plustek] ># warmup, lOffOnEnd, lampOff<[plustek] >#<[plustek] ># For autodetection use<[plustek] ># [usb]<[plustek] ># device /dev/usbscanner<[plustek] >#<[plustek] ># or simply<[plustek] ># [usb]<[plustek] >#<[plustek] ># or if you want a specific device but you have no idea about the<[plustek] ># device node or you use libusb, simply set vendor- and product-ID<[plustek] ># [usb] 0x07B3 0x0017<[plustek] ># device auto<[plustek] >#<[plustek] ># NOTE: autodetection is safe, as it uses the info it got<[plustek] ># from the USB subsystem. If you're not using the<[plustek] ># autodetection, you MUST have attached that device<[plustek] ># at your USB-port, that you have specified...<[plustek] >#<[plustek] ><[plustek] >[usb]<[plustek] next device uses autodetection[plustek] ... next device[plustek] ><[plustek] >#<[plustek] ># options for the previous USB entry<[plustek] >#<[plustek] ># switch lamp off after xxx secs, 0 disables the feature<[plustek] ># (can also be set via frontend)<[plustek] >option lampOff 300<[plustek] Decoding option >lampOff<[plustek] ><[plustek] ># warmup period in seconds, 0 means no warmup, -1 means auto-warmup<[plustek] ># (can also be set via frontend)<[plustek] >option warmup -1<[plustek] Decoding option >warmup<[plustek] ><[plustek] ># 0 means leave lamp-status untouched, not 0 means switch off<[plustek] ># on sane_close<[plustek] ># (can also be set via frontend)<[plustek] >option lOffOnEnd 1<[plustek] Decoding option >lOffOnEnd<[plustek] ><[plustek] >#<[plustek] ># options to tweak the image start-position<[plustek] ># (WARNING: there's no internal range check!!!)<[plustek] >#<[plustek] ># for the normal scan area<[plustek] >#<[plustek] >option posOffX 0<[plustek] Decoding option >posOffX<[plustek] >option posOffY 0<[plustek] Decoding option >posOffY<[plustek] ><[plustek] ># for transparencies<[plustek] >option tpaOffX 0<[plustek] Decoding option >tpaOffX<[plustek] >option tpaOffY 0<[plustek] Decoding option >tpaOffY<[plustek] ><[plustek] ># for negatives<[plustek] >option negOffX 0<[plustek] Decoding option >negOffX<[plustek] >option negOffY 0<[plustek] Decoding option >negOffY<[plustek] ><[plustek] >#<[plustek] ># for setting the calibration strip position<[plustek] ># (WARNING: there's no internal range check!!!)<[plustek] ># -1 means use built in<[plustek] ># (can also be set via frontend)<[plustek] >option posShadingY -1<[plustek] Decoding option >posShadingY<[plustek] >option tpaShadingY -1<[plustek] Decoding option >tpaShadingY<[plustek] >option negShadingY -1<[plustek] Decoding option >negShadingY<[plustek] ><[plustek] >#<[plustek] ># to invert the negatives, 0 disables the feature<[plustek] >#<[plustek] >option invertNegatives 0<[plustek] Decoding option >invertNegatives<[plustek] ><[plustek] >#<[plustek] ># to disable the internal sensor speedup function,<[plustek] ># 1 disables the feature<[plustek] >#<[plustek] >option disableSpeedup 0<[plustek] Decoding option >disableSpeedup<[plustek] ><[plustek] >#<[plustek] ># to save/restore coarse calibration data<[plustek] ># (can also be set via frontend)<[plustek] >option cacheCalData 0<[plustek] Decoding option >cacheCalData<[plustek] ><[plustek] >#<[plustek] ># use alternate calibration routines<[plustek] >#<[plustek] >option altCalibration 0<[plustek] Decoding option >altCalibration<[plustek] ><[plustek] >#<[plustek] ># for skipping whole calibration step<[plustek] >#<[plustek] >option skipCalibration 0<[plustek] Decoding option >skipCalibration<[plustek] ><[plustek] >#<[plustek] ># for skipping entire fine calibration step<[plustek] ># coarse calibration is done<[plustek] >#<[plustek] >option skipFine 0<[plustek] Decoding option >skipFine<[plustek] ><[plustek] >#<[plustek] ># discard the result of the fine white calibration<[plustek] >#<[plustek] >option skipFineWhite 0<[plustek] Decoding option >skipFineWhite<[plustek] ><[plustek] >#<[plustek] ># some scanners have a dark calibration strip, in<[plustek] ># general this one should be used for calibration.<[plustek] ># As this could cause some trouble, this option<[plustek] ># overrides that and the dark calibration will be<[plustek] ># done by switching the lamp off<[plustek] >#<[plustek] >option skipDarkStrip 0<[plustek] Decoding option >skipDarkStrip<[plustek] ><[plustek] ># for replacing the gain values found during coarse<[plustek] ># calibration<[plustek] ># (can also be set via frontend)<[plustek] >option red_gain -1<[plustek] Decoding option >red_gain<[plustek] >option green_gain -1<[plustek] Decoding option >green_gain<[plustek] >option blue_gain -1<[plustek] Decoding option >blue_gain<[plustek] ><[plustek] ># for replacing the offset values found during coarse<[plustek] ># calibration<[plustek] ># (can also be set via frontend)<[plustek] >option red_offset -1<[plustek] Decoding option >red_offset<[plustek] >option green_offset -1<[plustek] Decoding option >green_offset<[plustek] >option blue_offset -1<[plustek] Decoding option >blue_offset<[plustek] ><[plustek] >#<[plustek] ># for replacing the default lampoff settings, this<[plustek] ># works only for CIS devices like CanoScan LiDE20<[plustek] ># (can also be set via frontend)<[plustek] >option red_lampoff -1<[plustek] Decoding option >red_lampoff<[plustek] >option green_lampoff -1<[plustek] Decoding option >green_lampoff<[plustek] >option blue_lampoff -1<[plustek] Decoding option >blue_lampoff<[plustek] ><[plustek] >#<[plustek] ># for adjusting the default gamma values<[plustek] ># (can also be set via frontend)<[plustek] >option redGamma 1.0<[plustek] Decoding option >redGamma<[plustek] >option greenGamma 1.0<[plustek] Decoding option >greenGamma<[plustek] >option blueGamma 1.0<[plustek] Decoding option >blueGamma<[plustek] >option grayGamma 1.0<[plustek] Decoding option >grayGamma<[plustek] ><[plustek] >#<[plustek] ># to enable TPA (EPSON or UMAX, if autodetection fails)<[plustek] ># 0 means default behaviour as specified in the internal tables<[plustek] ># 1 means enable (needed for UMAX 3450)<[plustek] >option enableTPA 0<[plustek] Decoding option >enableTPA<[plustek] ><[plustek] >#<[plustek] ># model override functionality, currently only available for<[plustek] ># Mustek devices, using NSCs' vendor ID: 0x0400 and<[plustek] ># also their product ID: 0x1000 (LM9831) 0x1001 (LM9832)<[plustek] >#<[plustek] ># mov/PID | 0x1000 | 0x1001<[plustek] ># ---------------------------------------<[plustek] ># 0 (default)| BearPaw1200 | BearPaw 2400<[plustek] ># 1 | ignored | BearPaw 1200<[plustek] >#<[plustek] >option mov 0<[plustek] Decoding option >mov<[plustek] ><[plustek] >#<[plustek] ># and of course the device-name<[plustek] >#<[plustek] ># device /dev/usbscanner<[plustek] >device auto<[plustek] Decoding device name >auto<[plustek] ><[plustek] >#<[plustek] ># to define a new device, start with a new section:<[plustek] ># [usb]<[plustek] >#<[plustek] attach (auto, 0x7ffdc9adc760, (nil))[plustek] Device configuration:[plustek] device name : >auto<[plustek] USB-ID : ><[plustek] model ovr. : 0[plustek] warmup : -1s[plustek] lampOff : 300[plustek] lampOffOnEnd : yes[plustek] cacheCalData : no[plustek] altCalibrate : no[plustek] skipCalibr. : no[plustek] skipFine : no[plustek] skipFineWhite: no[plustek] skipDarkStrip: no[plustek] incDarkTarget: yes[plustek] invertNegs. : no[plustek] dis.Speedup : no[plustek] pos_x : 0[plustek] pos_y : 0[plustek] pos_shading_y: -1[plustek] neg_x : 0[plustek] neg_y : 0[plustek] neg_shading_y: -1[plustek] tpa_x : 0[plustek] tpa_y : 0[plustek] tpa_shading_y: -1[plustek] red gain : -1[plustek] green gain : -1[plustek] blue gain : -1[plustek] red offset : -1[plustek] green offset : -1[plustek] blue offset : -1[plustek] red lampoff : -1[plustek] green lampoff: -1[plustek] blue lampoff : -1[plustek] red Gamma : 1.00[plustek] green Gamma : 1.00[plustek] blue Gamma : 1.00[plustek] gray Gamma : 1.00[plustek] ---------------------[plustek] usbDev_open(auto,) - 0x5555ca4dbe90[plustek] Vendor ID=0x04A9, Product ID=0x2220[plustek] usbio_DetectLM983x[plustek] usbio_DetectLM983x: found LM9832/3[plustek] * setting device to idle state![plustek] Detected vendor & product ID: 0x04A9-0x2220[plustek] Device description for >0x04A9-0x2220< found.[plustek] usb_initDev(43,0x04a9,-1)[plustek] Device WAF : 0x00004002[plustek] Transferrate: 1000000 Bytes/s[plustek] Device Flags: 0x00000000[plustek] Vendor adjusted to: >Canon<[plustek] LAMP-STATUS: 0x00000000 (off)[plustek] RESETTING REGISTERS(-1) - 0x80[plustek] MISC I/O after RESET: 0x66, 0x16, 0x91[plustek] Calibration file-names set to:[plustek] >/home/manuel/.sane/Canon_CanoScan_LiDE25-coarse.cal<[plustek] >/home/manuel/.sane/Canon_CanoScan_LiDE25-fine.cal<[plustek] usb_SetScanParameters()[plustek] usb_GetMCLKDivider()[plustek] usb_GetMCLKDiv()[plustek] * PhyBytes = 6[plustek] * PhyLines = 4[plustek] * TotalBytes = 24[plustek] * Scansteps=72 (9*1200/150)[plustek] usb_SetScanParameters() done.[plustek] usbDev_getCaps()[plustek] Scanner information:[plustek] Vendor : Canon[plustek] Model : CanoScan LiDE25[plustek] Flags : 0x00000000[plustek] drvclose()[plustek] usbDev_stopScan()[plustek] usbDev_ScanEnd(), start=0, park=0[plustek] usbDev_close()[plustek] attach: model = >CanoScan LiDE25<[plustek] sane_get_devices (0x7ffdc9ade8e0, 0)device `plustek:libusb:001:008' is a Canon CanoScan LiDE25 flatbed scanner[plustek] sane_exit[plustek] Shutdown called (dev->fd=-1, libusb:001:008)[plustek] Waiting for scanner-ready...[plustek] Switching lamp off...[plustek] LAMP-STATUS: 0x00000000 (off)[plustek] LAMP-STATUS: 0x00000000 (off)[plustek] Lamp-Timer stoppedHere is the output when scanningscanimage -p --resolution 150 --mode Gray -x 210 -y 297 > image.pnm[sanei_debug] Setting debug level of dll to 0.[sanei_debug] Setting debug level of plustek to 12.[plustek] Plustek backend V0.52-12, part of sane-backends 1.0.25git[plustek] Retrieving all supported and conntected devices[plustek] Available and supported devices:[plustek] Device: >libusb:001:008< - 0x04a9x0x2220[plustek] ># Plustek-SANE Backend configuration file<[plustek] ># For use with LM9831/2/3 based USB scanners<[plustek] >#<[plustek] ><[plustek] ># each device needs at least two lines:<[plustek] ># - [usb] vendor-ID and product-ID<[plustek] ># - device devicename<[plustek] ># i.e. for Plustek (0x07B3) UT12/16/24 (0x0017)<[plustek] ># [usb] 0x07B3 0x0017<[plustek] ># device /dev/usbscanner<[plustek] ># or<[plustek] ># device libusb:bbb:ddd<[plustek] ># where bbb is the busnumber and ddd the device number<[plustek] ># make sure that your user has access to /proc/bus/usb/bbb/ddd<[plustek] >#<[plustek] ># additionally you can specify some options<[plustek] ># warmup, lOffOnEnd, lampOff<[plustek] >#<[plustek] ># For autodetection use<[plustek] ># [usb]<[plustek] ># device /dev/usbscanner<[plustek] >#<[plustek] ># or simply<[plustek] ># [usb]<[plustek] >#<[plustek] ># or if you want a specific device but you have no idea about the<[plustek] ># device node or you use libusb, simply set vendor- and product-ID<[plustek] ># [usb] 0x07B3 0x0017<[plustek] ># device auto<[plustek] >#<[plustek] ># NOTE: autodetection is safe, as it uses the info it got<[plustek] ># from the USB subsystem. If you're not using the<[plustek] ># autodetection, you MUST have attached that device<[plustek] ># at your USB-port, that you have specified...<[plustek] >#<[plustek] ><[plustek] >[usb]<[plustek] next device uses autodetection[plustek] ... next device[plustek] ><[plustek] >#<[plustek] ># options for the previous USB entry<[plustek] >#<[plustek] ># switch lamp off after xxx secs, 0 disables the feature<[plustek] ># (can also be set via frontend)<[plustek] >option lampOff 300<[plustek] Decoding option >lampOff<[plustek] ><[plustek] ># warmup period in seconds, 0 means no warmup, -1 means auto-warmup<[plustek] ># (can also be set via frontend)<[plustek] >option warmup -1<[plustek] Decoding option >warmup<[plustek] ><[plustek] ># 0 means leave lamp-status untouched, not 0 means switch off<[plustek] ># on sane_close<[plustek] ># (can also be set via frontend)<[plustek] >option lOffOnEnd 1<[plustek] Decoding option >lOffOnEnd<[plustek] ><[plustek] >#<[plustek] ># options to tweak the image start-position<[plustek] ># (WARNING: there's no internal range check!!!)<[plustek] >#<[plustek] ># for the normal scan area<[plustek] >#<[plustek] >option posOffX 0<[plustek] Decoding option >posOffX<[plustek] >option posOffY 0<[plustek] Decoding option >posOffY<[plustek] ><[plustek] ># for transparencies<[plustek] >option tpaOffX 0<[plustek] Decoding option >tpaOffX<[plustek] >option tpaOffY 0<[plustek] Decoding option >tpaOffY<[plustek] ><[plustek] ># for negatives<[plustek] >option negOffX 0<[plustek] Decoding option >negOffX<[plustek] >option negOffY 0<[plustek] Decoding option >negOffY<[plustek] ><[plustek] >#<[plustek] ># for setting the calibration strip position<[plustek] ># (WARNING: there's no internal range check!!!)<[plustek] ># -1 means use built in<[plustek] ># (can also be set via frontend)<[plustek] >option posShadingY -1<[plustek] Decoding option >posShadingY<[plustek] >option tpaShadingY -1<[plustek] Decoding option >tpaShadingY<[plustek] >option negShadingY -1<[plustek] Decoding option >negShadingY<[plustek] ><[plustek] >#<[plustek] ># to invert the negatives, 0 disables the feature<[plustek] >#<[plustek] >option invertNegatives 0<[plustek] Decoding option >invertNegatives<[plustek] ><[plustek] >#<[plustek] ># to disable the internal sensor speedup function,<[plustek] ># 1 disables the feature<[plustek] >#<[plustek] >option disableSpeedup 0<[plustek] Decoding option >disableSpeedup<[plustek] ><[plustek] >#<[plustek] ># to save/restore coarse calibration data<[plustek] ># (can also be set via frontend)<[plustek] >option cacheCalData 0<[plustek] Decoding option >cacheCalData<[plustek] ><[plustek] >#<[plustek] ># use alternate calibration routines<[plustek] >#<[plustek] >option altCalibration 0<[plustek] Decoding option >altCalibration<[plustek] ><[plustek] >#<[plustek] ># for skipping whole calibration step<[plustek] >#<[plustek] >option skipCalibration 0<[plustek] Decoding option >skipCalibration<[plustek] ><[plustek] >#<[plustek] ># for skipping entire fine calibration step<[plustek] ># coarse calibration is done<[plustek] >#<[plustek] >option skipFine 0<[plustek] Decoding option >skipFine<[plustek] ><[plustek] >#<[plustek] ># discard the result of the fine white calibration<[plustek] >#<[plustek] >option skipFineWhite 0<[plustek] Decoding option >skipFineWhite<[plustek] ><[plustek] >#<[plustek] ># some scanners have a dark calibration strip, in<[plustek] ># general this one should be used for calibration.<[plustek] ># As this could cause some trouble, this option<[plustek] ># overrides that and the dark calibration will be<[plustek] ># done by switching the lamp off<[plustek] >#<[plustek] >option skipDarkStrip 0<[plustek] Decoding option >skipDarkStrip<[plustek] ><[plustek] ># for replacing the gain values found during coarse<[plustek] ># calibration<[plustek] ># (can also be set via frontend)<[plustek] >option red_gain -1<[plustek] Decoding option >red_gain<[plustek] >option green_gain -1<[plustek] Decoding option >green_gain<[plustek] >option blue_gain -1<[plustek] Decoding option >blue_gain<[plustek] ><[plustek] ># for replacing the offset values found during coarse<[plustek] ># calibration<[plustek] ># (can also be set via frontend)<[plustek] >option red_offset -1<[plustek] Decoding option >red_offset<[plustek] >option green_offset -1<[plustek] Decoding option >green_offset<[plustek] >option blue_offset -1<[plustek] Decoding option >blue_offset<[plustek] ><[plustek] >#<[plustek] ># for replacing the default lampoff settings, this<[plustek] ># works only for CIS devices like CanoScan LiDE20<[plustek] ># (can also be set via frontend)<[plustek] >option red_lampoff -1<[plustek] Decoding option >red_lampoff<[plustek] >option green_lampoff -1<[plustek] Decoding option >green_lampoff<[plustek] >option blue_lampoff -1<[plustek] Decoding option >blue_lampoff<[plustek] ><[plustek] >#<[plustek] ># for adjusting the default gamma values<[plustek] ># (can also be set via frontend)<[plustek] >option redGamma 1.0<[plustek] Decoding option >redGamma<[plustek] >option greenGamma 1.0<[plustek] Decoding option >greenGamma<[plustek] >option blueGamma 1.0<[plustek] Decoding option >blueGamma<[plustek] >option grayGamma 1.0<[plustek] Decoding option >grayGamma<[plustek] ><[plustek] >#<[plustek] ># to enable TPA (EPSON or UMAX, if autodetection fails)<[plustek] ># 0 means default behaviour as specified in the internal tables<[plustek] ># 1 means enable (needed for UMAX 3450)<[plustek] >option enableTPA 0<[plustek] Decoding option >enableTPA<[plustek] ><[plustek] >#<[plustek] ># model override functionality, currently only available for<[plustek] ># Mustek devices, using NSCs' vendor ID: 0x0400 and<[plustek] ># also their product ID: 0x1000 (LM9831) 0x1001 (LM9832)<[plustek] >#<[plustek] ># mov/PID | 0x1000 | 0x1001<[plustek] ># ---------------------------------------<[plustek] ># 0 (default)| BearPaw1200 | BearPaw 2400<[plustek] ># 1 | ignored | BearPaw 1200<[plustek] >#<[plustek] >option mov 0<[plustek] Decoding option >mov<[plustek] ><[plustek] >#<[plustek] ># and of course the device-name<[plustek] >#<[plustek] ># device /dev/usbscanner<[plustek] >device auto<[plustek] Decoding device name >auto<[plustek] ><[plustek] >#<[plustek] ># to define a new device, start with a new section:<[plustek] ># [usb]<[plustek] >#<[plustek] attach (auto, 0x7ffeffed9fa0, (nil))[plustek] Device configuration:[plustek] device name : >auto<[plustek] USB-ID : ><[plustek] model ovr. : 0[plustek] warmup : -1s[plustek] lampOff : 300[plustek] lampOffOnEnd : yes[plustek] cacheCalData : no[plustek] altCalibrate : no[plustek] skipCalibr. : no[plustek] skipFine : no[plustek] skipFineWhite: no[plustek] skipDarkStrip: no[plustek] incDarkTarget: yes[plustek] invertNegs. : no[plustek] dis.Speedup : no[plustek] pos_x : 0[plustek] pos_y : 0[plustek] pos_shading_y: -1[plustek] neg_x : 0[plustek] neg_y : 0[plustek] neg_shading_y: -1[plustek] tpa_x : 0[plustek] tpa_y : 0[plustek] tpa_shading_y: -1[plustek] red gain : -1[plustek] green gain : -1[plustek] blue gain : -1[plustek] red offset : -1[plustek] green offset : -1[plustek] blue offset : -1[plustek] red lampoff : -1[plustek] green lampoff: -1[plustek] blue lampoff : -1[plustek] red Gamma : 1.00[plustek] green Gamma : 1.00[plustek] blue Gamma : 1.00[plustek] gray Gamma : 1.00[plustek] ---------------------[plustek] usbDev_open(auto,) - 0x55e6fbc6e5a0[plustek] Vendor ID=0x04A9, Product ID=0x2220[plustek] usbio_DetectLM983x[plustek] usbio_DetectLM983x: found LM9832/3[plustek] * setting device to idle state![plustek] Detected vendor & product ID: 0x04A9-0x2220[plustek] Device description for >0x04A9-0x2220< found.[plustek] usb_initDev(43,0x04a9,-1)[plustek] Device WAF : 0x00004002[plustek] Transferrate: 1000000 Bytes/s[plustek] Device Flags: 0x00000000[plustek] Vendor adjusted to: >Canon<[plustek] LAMP-STATUS: 0x00000000 (off)[plustek] RESETTING REGISTERS(-1) - 0x80[plustek] MISC I/O after RESET: 0x66, 0x16, 0x91[plustek] Calibration file-names set to:[plustek] >/home/manuel/.sane/Canon_CanoScan_LiDE25-coarse.cal<[plustek] >/home/manuel/.sane/Canon_CanoScan_LiDE25-fine.cal<[plustek] usb_SetScanParameters()[plustek] usb_GetMCLKDivider()[plustek] usb_GetMCLKDiv()[plustek] * PhyBytes = 6[plustek] * PhyLines = 4[plustek] * TotalBytes = 24[plustek] * Scansteps=72 (9*1200/150)[plustek] usb_SetScanParameters() done.[plustek] usbDev_getCaps()[plustek] Scanner information:[plustek] Vendor : Canon[plustek] Model : CanoScan LiDE25[plustek] Flags : 0x00000000[plustek] drvclose()[plustek] usbDev_stopScan()[plustek] usbDev_ScanEnd(), start=0, park=0[plustek] usbDev_close()[plustek] attach: model = >CanoScan LiDE25<[plustek] sane_get_devices (0x7ffeffedc120, 0)[plustek] sane_open - libusb:001:008[plustek] Presetting Gamma tables (len=4096)[plustek] * Channel[0], gamma 2.000[plustek] * Channel[1], gamma 2.000[plustek] * Channel[2], gamma 2.000[plustek] * Channel[3], gamma 2.000[plustek] ----------------------------------[plustek] sane_start[plustek] usbDev_open(libusb:001:008,) - (nil)[plustek] Vendor ID=0x04A9, Product ID=0x2220[plustek] usbio_DetectLM983x[plustek] usbio_DetectLM983x: found LM9832/3[plustek] Detected vendor & product ID: 0x04A9-0x2220[plustek] Device description for >0x04A9-0x2220< found.[plustek] usb_initDev(43,0x04a9,43)[plustek] Device WAF : 0x00004002[plustek] Transferrate: 1000000 Bytes/s[plustek] Device Flags: 0x00000006[plustek] Vendor adjusted to: >Canon<[plustek] LAMP-STATUS: 0x00000000 (off)[plustek] RESETTING REGISTERS(43) - 0x80[plustek] MISC I/O after RESET: 0x66, 0x16, 0x91[plustek] usbDev_getCaps()[plustek] scanmode = 1[plustek] usbDev_getCropInfo()[plustek] usb_GetImageInfo()[plustek] PPL = 1240[plustek] LPA = 1753[plustek] BPL = 1240[plustek] brightness 0, contrast 0[plustek] usbDev_setScanEnv()[plustek] usb_SaveImageInfo()[plustek] * dwFlag = 0x00000400[plustek] usb_GetImageInfo()[plustek] * Preview Mode NOT set![plustek] Setting map[3] at 0x55e6fbcf7254[plustek] usbDev_startScan()[plustek] LAMP-STATUS: 0x00000000 (off)[plustek] Switching Lamp on[plustek] Warmup-Timer started[plustek] LAMP-STATUS: 0x00000001 (on)[plustek] Lamp-Timer stopped[plustek] dwflag = 0x40000400 dwBytesLine = 1240[plustek] Lines = 1753[plustek] Bytes per Line = 1240[plustek] Bitdepth = 8[plustek] TIME START[plustek] local_sane_start done[plustek] reader_process started (as thread)[plustek] reader_process:starting to READ data (2173720 bytes)[plustek] buf = 0x7f1864447010[plustek] usbDev_PrepareScan()[plustek] sane_start done[plustek] cano_DoCalibration()[plustek] #########################[plustek] usb_SpeedTest(43,1000000)[plustek] GETMCLK[10/1], using entry 8: 12.000, 1200[plustek] SETMCLK[10/1]: 12.000[plustek] usb_SetScanParameters()[plustek] usb_GetMCLKDivider()[plustek] usb_GetMCLKDiv()[plustek] * PhyBytes = 30606[plustek] * PhyLines = 1[plustek] * TotalBytes = 30606[plustek] usb_SetScanParameters() done.[plustek] usb_ScanBegin()[plustek] usb_DownloadShadingData(1)[plustek] usb_ScanBegin() done.[plustek] usb_IsDataAvailableInDRAM()[plustek] Data is available[plustek] usbDev_ScanEnd(), start=1, park=0[plustek] usb_SetScanParameters()[plustek] usb_GetMCLKDivider()[plustek] usb_GetMCLKDiv()[plustek] * PhyBytes = 30606[plustek] * PhyLines = 1[plustek] * TotalBytes = 30606[plustek] usb_SetScanParameters() done.[plustek] usb_ScanBegin()[plustek] usb_DownloadShadingData(1)[plustek] usb_ScanBegin() done.[plustek] usb_IsDataAvailableInDRAM()[plustek] Data is available[plustek] usbDev_ScanEnd(), start=1, park=0[plustek] usb_SetScanParameters()[plustek] usb_GetMCLKDivider()[plustek] usb_GetMCLKDiv()...Hope that helps a little bit Manuel 这篇关于Webusb扫描文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 10-13 01:29