我将整个hidapi-0.7.0下载（https://github.com/downloads/signal11/hidapi/hidapi-0.7.0.zip）解压到我的项目目录中，然后将hidapi-0.7.0/hidapi/hidapi.h和hidapi-0.7.0/linux/hid-libusb.c添加到我的项目中。所以它们现在出现在我的*.pro文件中。
我安装了libusb-1.0（sudo apt-get install libusb-1.0-0-dev）并尝试构建项目。它编译得很好，但是链接器做到了：
hid-libusb.o: In function `libusb_get_string_descriptor':
/usr/include/libusb-1.0/libusb.h:1789: undefined reference to `libusb_control_transfer'
hid-libusb.o: In function `make_path':
/../hidapi-0.7.0/linux/hid-libusb.c:377: undefined reference to `libusb_get_device_address'
/../hidapi-0.7.0/linux/hid-libusb.c:376: undefined reference to `libusb_get_bus_number'
hid-libusb.o: In function `hid_init':
/../hidapi-0.7.0/linux/hid-libusb.c:388: undefined reference to `libusb_init'
hid-libusb.o: In function `hid_exit':
/../hidapi-0.7.0/linux/hid-libusb.c:399: undefined reference to `libusb_exit'
hid-libusb.o: In function `hid_enumerate':
/../hidapi-0.7.0/linux/hid-libusb.c:422: undefined reference to `libusb_get_device_list'
/../hidapi-0.7.0/linux/hid-libusb.c:431: undefined reference to `libusb_get_device_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:439: undefined reference to `libusb_get_active_config_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:441: undefined reference to `libusb_get_config_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:470: undefined reference to `libusb_open'
/../hidapi-0.7.0/linux/hid-libusb.c:545: undefined reference to `libusb_close'
/../hidapi-0.7.0/linux/hid-libusb.c:560: undefined reference to `libusb_free_config_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:564: undefined reference to `libusb_free_device_list'
hid-libusb.o: In function `read_callback':
/../hidapi-0.7.0/linux/hid-libusb.c:673: undefined reference to `libusb_submit_transfer'
hid-libusb.o: In function `read_thread':
/../hidapi-0.7.0/linux/hid-libusb.c:685: undefined reference to `libusb_alloc_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:697: undefined reference to `libusb_submit_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:705: undefined reference to `libusb_handle_events'
/../hidapi-0.7.0/linux/hid-libusb.c:714: undefined reference to `libusb_cancel_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:716: undefined reference to `libusb_handle_events'
hid-libusb.o: In function `hid_open_path':
/../hidapi-0.7.0/linux/hid-libusb.c:758: undefined reference to `libusb_get_device_list'
/../hidapi-0.7.0/linux/hid-libusb.c:763: undefined reference to `libusb_get_device_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:765: undefined reference to `libusb_get_active_config_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:778: undefined reference to `libusb_open'
/../hidapi-0.7.0/linux/hid-libusb.c:788: undefined reference to `libusb_kernel_driver_active'
/../hidapi-0.7.0/linux/hid-libusb.c:789: undefined reference to `libusb_detach_kernel_driver'
/../hidapi-0.7.0/linux/hid-libusb.c:791: undefined reference to `libusb_close'
/../hidapi-0.7.0/linux/hid-libusb.c:799: undefined reference to `libusb_claim_interface'
/../hidapi-0.7.0/linux/hid-libusb.c:803: undefined reference to `libusb_close'
/../hidapi-0.7.0/linux/hid-libusb.c:858: undefined reference to `libusb_free_config_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:862: undefined reference to `libusb_free_device_list'
hid-libusb.o: In function `hid_write':
/../hidapi-0.7.0/linux/hid-libusb.c:891: undefined reference to `libusb_control_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:910: undefined reference to `libusb_interrupt_transfer'
hid-libusb.o: In function `hid_send_feature_report':
/../hidapi-0.7.0/linux/hid-libusb.c:1059: undefined reference to `libusb_control_transfer'
hid-libusb.o: In function `hid_get_feature_report':
/../hidapi-0.7.0/linux/hid-libusb.c:1090: undefined reference to `libusb_control_transfer'
hid-libusb.o: In function `hid_close':
/../hidapi-0.7.0/linux/hid-libusb.c:1115: undefined reference to `libusb_cancel_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:1122: undefined reference to `libusb_free_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:1125: undefined reference to `libusb_release_interface'
/../hidapi-0.7.0/linux/hid-libusb.c:1128: undefined reference to `libusb_close'
自述文件只是说：
要使用HIDAPI，只需将hid.c或hid libusb.c放入
使用生成文件中的生成参数进行应用程序和生成。
这没用。（当我根本不理解Makefile时，如何确保QtC生成的Makefile像这样工作？）
网站上说：
建立指令
...
Linux系统：
切换到linux/目录并运行make。
但它的作用是一样的：
~$ cd /../hidapi-0.7.0/linux
/../hidapi-0.7.0/linux$ make
cc -Wall -g -c -I../hidapi `pkg-config libusb-1.0 --cflags` hid-libusb.c -o hid-libusb.o
/bin/sh: 1: pkg-config: not found
hid-libusb.c: In function ‘hid_open_path’:
hid-libusb.c:748:13: warning: variable ‘num_devs’ set but not used [-Wunused-but-set-variable]
ssize_t num_devs;
^
g++ -Wall -g hid-libusb.o ../hidtest/hidtest.o `pkg-config libusb-1.0 libudev --libs` -o hidtest
/bin/sh: 1: pkg-config: not found
hid-libusb.o: In function `libusb_get_string_descriptor':
/usr/include/libusb-1.0/libusb.h:1789: undefined reference to `libusb_control_transfer'
hid-libusb.o: In function `new_hid_device':
/../hidapi-0.7.0/linux/hid-libusb.c:132: undefined reference to `pthread_barrier_init'
hid-libusb.o: In function `free_hid_device':
/../hidapi-0.7.0/linux/hid-libusb.c:140: undefined reference to `pthread_barrier_destroy'
hid-libusb.o: In function `make_path':
/../hidapi-0.7.0/linux/hid-libusb.c:377: undefined reference to `libusb_get_device_address'
/../hidapi-0.7.0/linux/hid-libusb.c:376: undefined reference to `libusb_get_bus_number'
hid-libusb.o: In function `hid_init':
/../hidapi-0.7.0/linux/hid-libusb.c:388: undefined reference to `libusb_init'
hid-libusb.o: In function `hid_exit':
/../hidapi-0.7.0/linux/hid-libusb.c:399: undefined reference to `libusb_exit'
hid-libusb.o: In function `hid_enumerate':
/../hidapi-0.7.0/linux/hid-libusb.c:422: undefined reference to `libusb_get_device_list'
/../hidapi-0.7.0/linux/hid-libusb.c:431: undefined reference to `libusb_get_device_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:439: undefined reference to `libusb_get_active_config_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:441: undefined reference to `libusb_get_config_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:470: undefined reference to `libusb_open'
/../hidapi-0.7.0/linux/hid-libusb.c:545: undefined reference to `libusb_close'
/../hidapi-0.7.0/linux/hid-libusb.c:560: undefined reference to `libusb_free_config_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:564: undefined reference to `libusb_free_device_list'
hid-libusb.o: In function `read_callback':
/../hidapi-0.7.0/linux/hid-libusb.c:673: undefined reference to `libusb_submit_transfer'
hid-libusb.o: In function `read_thread':
/../hidapi-0.7.0/linux/hid-libusb.c:685: undefined reference to `libusb_alloc_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:697: undefined reference to `libusb_submit_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:700: undefined reference to `pthread_barrier_wait'
/../hidapi-0.7.0/linux/hid-libusb.c:705: undefined reference to `libusb_handle_events'
/../hidapi-0.7.0/linux/hid-libusb.c:714: undefined reference to `libusb_cancel_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:716: undefined reference to `libusb_handle_events'
hid-libusb.o: In function `hid_open_path':
/../hidapi-0.7.0/linux/hid-libusb.c:758: undefined reference to `libusb_get_device_list'
/../hidapi-0.7.0/linux/hid-libusb.c:763: undefined reference to `libusb_get_device_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:765: undefined reference to `libusb_get_active_config_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:778: undefined reference to `libusb_open'
/../hidapi-0.7.0/linux/hid-libusb.c:788: undefined reference to `libusb_kernel_driver_active'
/../hidapi-0.7.0/linux/hid-libusb.c:789: undefined reference to `libusb_detach_kernel_driver'
/../hidapi-0.7.0/linux/hid-libusb.c:791: undefined reference to `libusb_close'
/../hidapi-0.7.0/linux/hid-libusb.c:799: undefined reference to `libusb_claim_interface'
/../hidapi-0.7.0/linux/hid-libusb.c:803: undefined reference to `libusb_close'
/../hidapi-0.7.0/linux/hid-libusb.c:848: undefined reference to `pthread_create'
/../hidapi-0.7.0/linux/hid-libusb.c:851: undefined reference to `pthread_barrier_wait'
/../hidapi-0.7.0/linux/hid-libusb.c:858: undefined reference to `libusb_free_config_descriptor'
/../hidapi-0.7.0/linux/hid-libusb.c:862: undefined reference to `libusb_free_device_list'
hid-libusb.o: In function `hid_write':
/../hidapi-0.7.0/linux/hid-libusb.c:891: undefined reference to `libusb_control_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:910: undefined reference to `libusb_interrupt_transfer'
hid-libusb.o: In function `hid_read_timeout':
/../hidapi-0.7.0/linux/hid-libusb.c:961: undefined reference to `__pthread_register_cancel'
/../hidapi-0.7.0/linux/hid-libusb.c:1029: undefined reference to `__pthread_unregister_cancel'
hid-libusb.o: In function `hid_send_feature_report':
/../hidapi-0.7.0/linux/hid-libusb.c:1059: undefined reference to `libusb_control_transfer'
hid-libusb.o: In function `hid_get_feature_report':
/../hidapi-0.7.0/linux/hid-libusb.c:1090: undefined reference to `libusb_control_transfer'
hid-libusb.o: In function `hid_close':
/../hidapi-0.7.0/linux/hid-libusb.c:1115: undefined reference to `libusb_cancel_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:1118: undefined reference to `pthread_join'
/../hidapi-0.7.0/linux/hid-libusb.c:1122: undefined reference to `libusb_free_transfer'
/../hidapi-0.7.0/linux/hid-libusb.c:1125: undefined reference to `libusb_release_interface'
/../hidapi-0.7.0/linux/hid-libusb.c:1128: undefined reference to `libusb_close'
collect2: error: ld returned 1 exit status
Makefile:25: recipe for target 'hidtest' failed
make: *** [hidtest] Error 1
/../hidapi-0.7.0/linux$
我是否还遗漏了一些东西（我希望是这样），或者HIDAPI 0.7.0真的坏了，因为它甚至没有正确地构建出来？
根据@eyllanesc的评论进行实验：
/../hidapi-0.7.0/linux$ sudo apt-get install libudev-dev libusb-1.0-0-dev libfox-1.6-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
libusb-1.0-0-dev is already the newest version (2:1.0.20-1).
The following additional packages will be installed:
build-essential dpkg-dev libalgorithm-diff-perl libalgorithm-diff-xs-perl libalgorithm-merge-perl libcups2-dev libexpat1-dev libfontconfig1-dev libfox-1.6-0 libfreetype6-dev libjbig-dev libjpeg-dev libjpeg-turbo8-dev libjpeg8-dev
liblzma-dev libpng12-dev libtiff5-dev libtiffxx5 libxcursor-dev libxft-dev libxrender-dev pkg-config x11proto-render-dev
Suggested packages:
debian-keyring libfox-1.6-doc liblzma-doc
The following NEW packages will be installed:
build-essential dpkg-dev libalgorithm-diff-perl libalgorithm-diff-xs-perl libalgorithm-merge-perl libcups2-dev libexpat1-dev libfontconfig1-dev libfox-1.6-0 libfox-1.6-dev libfreetype6-dev libjbig-dev libjpeg-dev libjpeg-turbo8-dev
libjpeg8-dev liblzma-dev libpng12-dev libtiff5-dev libtiffxx5 libudev-dev libxcursor-dev libxft-dev libxrender-dev pkg-config x11proto-render-dev
0 upgraded, 25 newly installed, 0 to remove and 0 not upgraded.
Need to get 5,865 kB of archives.
After this operation, 28.3 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 libfox-1.6-0 amd64 1.6.50-1 [879 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 libudev-dev amd64 229-4ubuntu19 [150 kB]
Get:3 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 dpkg-dev all 1.18.4ubuntu1.2 [584 kB]
Get:4 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 build-essential amd64 12.1ubuntu2 [4,758 B]
Get:5 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libalgorithm-diff-perl all 1.19.03-1 [47.6 kB]
Get:6 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libalgorithm-diff-xs-perl amd64 0.04-4build1 [11.0 kB]
Get:7 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libalgorithm-merge-perl all 0.08-3 [12.0 kB]
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Get:9 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 libexpat1-dev amd64 2.1.0-7ubuntu0.16.04.3 [115 kB]
Get:10 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libpng12-dev amd64 1.2.54-1ubuntu1 [184 kB]
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Get:12 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 pkg-config amd64 0.29.1-0ubuntu1 [45.0 kB]
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Get:14 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libjpeg-turbo8-dev amd64 1.4.2-0ubuntu3 [254 kB]
Get:15 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libjpeg8-dev amd64 8c-2ubuntu8 [1,552 B]
Get:16 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libjpeg-dev amd64 8c-2ubuntu8 [1,546 B]
Get:17 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libjbig-dev amd64 2.1-3.1 [24.8 kB]
Get:18 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 liblzma-dev amd64 5.1.1alpha+20120614-2ubuntu2 [137 kB]
Get:19 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 libtiffxx5 amd64 4.0.6-1ubuntu0.2 [5,590 B]
Get:20 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 libtiff5-dev amd64 4.0.6-1ubuntu0.2 [267 kB]
Get:21 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 x11proto-render-dev all 2:0.11.1-2 [20.1 kB]
Get:22 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libxrender-dev amd64 1:0.9.9-0ubuntu1 [24.5 kB]
Get:23 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libxcursor-dev amd64 1:1.1.14-1 [29.8 kB]
Get:24 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libxft-dev amd64 2.3.2-1 [45.7 kB]
Get:25 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 libfox-1.6-dev amd64 1.6.50-1 [1,167 kB]
Fetched 5,865 kB in 3s (1,489 kB/s)
Selecting previously unselected package libfox-1.6-0:amd64.
(Reading database ... 195066 files and directories currently installed.)
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Setting up pkg-config (0.29.1-0ubuntu1) ...
Setting up libfontconfig1-dev:amd64 (2.11.94-0ubuntu1.1) ...
Setting up libjpeg-turbo8-dev:amd64 (1.4.2-0ubuntu3) ...
Setting up libjpeg8-dev:amd64 (8c-2ubuntu8) ...
Setting up libjpeg-dev:amd64 (8c-2ubuntu8) ...
Setting up libjbig-dev:amd64 (2.1-3.1) ...
Setting up liblzma-dev:amd64 (5.1.1alpha+20120614-2ubuntu2) ...
Setting up libtiffxx5:amd64 (4.0.6-1ubuntu0.2) ...
Setting up libtiff5-dev:amd64 (4.0.6-1ubuntu0.2) ...
Setting up x11proto-render-dev (2:0.11.1-2) ...
Setting up libxrender-dev:amd64 (1:0.9.9-0ubuntu1) ...
Setting up libxcursor-dev:amd64 (1:1.1.14-1) ...
Setting up libxft-dev (2.3.2-1) ...
Setting up libfox-1.6-dev (1.6.50-1) ...
update-alternatives: using /usr/bin/fox-config-1.6 to provide /usr/bin/fox-config (fox-config) in auto mode
update-alternatives: using /usr/bin/reswrap-1.6 to provide /usr/bin/reswrap (reswrap) in auto mode
Processing triggers for libc-bin (2.23-0ubuntu9) ...
/../hidapi-0.7.0/linux$ make clean
rm -f hid-libusb.o ../hidtest/hidtest.o hidtest
/../hidapi-0.7.0/linux$ make
cc -Wall -g -c -I../hidapi `pkg-config libusb-1.0 --cflags` hid-libusb.c -o hid-libusb.o
hid-libusb.c: In function ‘hid_open_path’:
hid-libusb.c:748:13: warning: variable ‘num_devs’ set but not used [-Wunused-but-set-variable]
ssize_t num_devs;
^
g++ -Wall -g -c -I../hidapi `pkg-config libusb-1.0 --cflags` ../hidtest/hidtest.cpp -o ../hidtest/hidtest.o
g++ -Wall -g hid-libusb.o ../hidtest/hidtest.o `pkg-config libusb-1.0 libudev --libs` -o hidtest
/usr/bin/ld: hid-libusb.o: undefined reference to symbol 'pthread_create@@GLIBC_2.2.5'
//lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
Makefile:25: recipe for target 'hidtest' failed
make: *** [hidtest] Error 1
/../hidapi-0.7.0/linux$
也不喜欢这样，但至少是另一个错误，所以可能是某种进步。不幸的是，我也不知道这是什么意思。
最佳答案
哦！!! 我错过了http://www.eliasing.com/qt/hid-qt的这一部分：
将以下内容添加到*.pro文件中：
macx:SOURCES+=mac/hid.c
unix:！macx:SOURCES+=linux/hid libusb.c
win32:SOURCES+=windows/hid.cpp
macx:LIBS+=-框架CoreFoundation-框架IOkit
unix:！macx:LIBS+=-lusb-1.0版
win32:LIBS+=-lSetupAPI
所以它实际上并没有查看已安装的库。现在开始工作了！
注意：此部分是必需的，至少对于hidapi-0.7.0：
您可能还需要替换hid libusb.c中的以下内容
#包括“libusb.h”
替换为：
#包括“libusb-1.0/libusb.h”
如果您决定将整个hidapi目录复制到您的项目中，而不是仅复制指定的文件，您可能还需要更正该目录下的#include "hidapi.h"行。
关于linux - 如何在Qt Creator中使用HIDAPI？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/46799349/