uinput

How to generate key strokes events with the Input Subsystem

由 扶醉桌前 提交于 2021-02-19 06:15:47
问题 I am writing a Key board emulator program in Linux, As a start I was able to render key strokes into X11 window but this is not working in virtual terminals and try out a different way. I referred to http://thiemonge.org/getting-started-with-uinput and tried with uinput kernel module. According to the tutorial key strokes can be injected as a uinput event and I wrote below code accordingly. #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <fcntl.h>

Generate keystrokes in Linux from Python3

由 筅森魡賤 提交于 2019-12-24 11:37:32
问题 I need to generate keystrokes in Linux (Raspbian) from Python3. Something like uinput but for Python3. I'd prefer not to use subprocess for this. Easier to install (apt-get) the better as it will be used in a guide to show others. Any ideas? Thomas 回答1: Found PyUserInput that works. https://github.com/SavinaRoja/PyUserInput/wiki/Installation https://github.com/SavinaRoja/PyUserInput sudo apt-get install python3-pip sudo pip-3.2 install python3-xlib sudo pip-3.2 install PyUserInput And the

UINPUT device program in C for Ubuntu 14.04 does not work. Why? Part 2:

由 自古美人都是妖i 提交于 2019-12-11 10:27:46
问题 I am using Ubuntu 14.04, and I am setting up a virtual keyboard in c, which requires uinput to work. My program is supposed to send the key 'a' to terminal, as it would when I would press the 'a' key on the keyboard. Here's my source code: int main() { int uinp_fd; int i; /********** Open uinput file section. **********************/ uinp_fd = open("/dev/uinput", O_WRONLY|O_NDELAY); if(uinp_fd < 0) { printf("Unable to open /dev/uinput\n"); return -1; } else printf("Can open /dev/uinput\n"); /*

How to get name (path) of uinput created device

由 醉酒当歌 提交于 2019-12-10 16:42:24
问题 I have successfully set up a small program to create a uinput device which I plan to use to automate testing of an application receiving keyboard input events. I have followed both tutorials as found in this very nice answer. When my program creates the uinput device by calling ioctl(fd, UI_DEV_CREATE) a new device appears in the file system so my application under test can attach to it and wait for events. My target system already has a /dev/input/event0 device so the new one gets the path

Is it efficient to use epoll with devices (/dev/event/…)?

由 隐身守侯 提交于 2019-12-07 05:30:25
问题 I am working on a monothreaded process applet which creates a proxy virtual device (more precisely a virtual Xbox 360 pad); I do manage to create it with the uinput interface, I set it up properly and it works just fine. In order to feed commands to this virtual device , I read events from another real interface (in this case a PS3 pad), and I open the real device file with these flags: fd = open("/dev/input/event22", O_RDONLY); // open the PS3 pad The main loop is something like (minus error

Is it efficient to use epoll with devices (/dev/event/…)?

由 最后都变了- 提交于 2019-12-05 10:40:54
I am working on a monothreaded process applet which creates a proxy virtual device (more precisely a virtual Xbox 360 pad); I do manage to create it with the uinput interface, I set it up properly and it works just fine. In order to feed commands to this virtual device , I read events from another real interface (in this case a PS3 pad), and I open the real device file with these flags: fd = open("/dev/input/event22", O_RDONLY); // open the PS3 pad The main loop is something like (minus error checking): while(run) { input_event ev = {0}; read(fd, &ev, sizeof(struct input_event)); // convert

linux uinput: simple example?

由 。_饼干妹妹 提交于 2019-11-30 10:07:10
I'm having some problems getting both sides of code using uinput working. Based on Getting started with uinput: the user level input subsystem [dead link; archived ] I put together the following writer (minus error handling): int main(int ac, char **av) { int fd = open("/dev/uinput", O_WRONLY | O_NONBLOCK); int ret = ioctl(fd, UI_SET_EVBIT, EV_ABS); ret = ioctl(fd, UI_SET_ABSBIT, ABS_X); struct uinput_user_dev uidev = {0}; snprintf(uidev.name, UINPUT_MAX_NAME_SIZE, "uinput-rotary"); uidev.absmin[ABS_X] = 0; uidev.absmax[ABS_X] = 255; ret = write(fd, &uidev, sizeof(uidev)); ret = ioctl(fd, UI

linux uinput: simple example?

由 不羁的心 提交于 2019-11-29 15:22:14
问题 I'm having some problems getting both sides of code using uinput working. Based on Getting started with uinput: the user level input subsystem [dead link; archived] I put together the following writer (minus error handling): int main(int ac, char **av) { int fd = open("/dev/uinput", O_WRONLY | O_NONBLOCK); int ret = ioctl(fd, UI_SET_EVBIT, EV_ABS); ret = ioctl(fd, UI_SET_ABSBIT, ABS_X); struct uinput_user_dev uidev = {0}; snprintf(uidev.name, UINPUT_MAX_NAME_SIZE, "uinput-rotary"); uidev
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