jab2870/sxmo-utils
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Use by-path for vibrator device

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No need to search for correct device.

Signed-off-by: Anjandev Momi <anjan@momi.ca>
This commit is contained in:
Jochen Sprickerhof 2021-03-02 22:20:51 +01:00 • committed by Anjandev Momi
parent 871964da4e
commit d70a4aed63
1 changed files with 1 additions and 28 deletions
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29
programs/sxmo_vibratepine.c
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@ -28,33 +28,6 @@ void syscall_error(int is_err, const char* fmt, ...)
exit(1);
}
int open_event_dev(const char* name_needle, int flags)
{
char path[256];
char name[256];
int fd, ret;
// find the right device and open it
for (int i = 0; i < 10; i++) {
snprintf(path, sizeof path, "/dev/input/event%d", i);
fd = open(path, flags);
if (fd < 0)
continue;
ret = ioctl(fd, EVIOCGNAME(256), name);
if (ret < 0)
continue;
if (strstr(name, name_needle))
return fd;
close(fd);
}
errno = ENOENT;
return -1;
}
void usage() {
fprintf(stderr, "Usage: sxmo_vibratepine duration_ms\n");
fprintf(stderr, " sxmo_vibratepine duration_ms strength_number\n");
@ -82,7 +55,7 @@ int main(int argc, char* argv[])
durationMs = atoi(argv[argc--]);
fd = open_event_dev("vibrator", O_RDWR | O_CLOEXEC);
fd = open("/dev/input/by-path/platform-vibrator-event", O_RDWR | O_CLOEXEC);
syscall_error(fd < 0, "Can't open vibrator event device");
ret = ioctl(fd, EVIOCGEFFECTS, &effects);
syscall_error(ret < 0, "EVIOCGEFFECTS failed");