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Fixed game controller hotplug support for some embedded Linux devices

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When guessing the device class, it ends up being 0 for devices that have been removed (because the device node no longer exists)
This commit is contained in:
Sam Lantinga 2015-01-29 13:33:53 -08:00
parent 0874eb9713
commit a725806662
1 changed files with 7 additions and 6 deletions
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11
src/joystick/linux/SDL_sysjoystick.c
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@ -142,13 +142,15 @@ IsJoystick(int fd, char *namebuf, const size_t namebuflen, SDL_JoystickGUID *gui
#if SDL_USE_LIBUDEV
void joystick_udev_callback(SDL_UDEV_deviceevent udev_type, int udev_class, const char *devpath)
{
if (devpath == NULL || !(udev_class & SDL_UDEV_DEVICE_JOYSTICK)) {
if (devpath == NULL) {
return;
}
switch( udev_type )
{
switch (udev_type) {
case SDL_UDEV_DEVICEADDED:
if (!(udev_class & SDL_UDEV_DEVICE_JOYSTICK)) {
return;
}
MaybeAddDevice(devpath);
break;
@ -335,13 +337,12 @@ JoystickInitWithoutUdev(void)
static int
JoystickInitWithUdev(void)
{
if (SDL_UDEV_Init() < 0) {
return SDL_SetError("Could not initialize UDEV");
}
/* Set up the udev callback */
if ( SDL_UDEV_AddCallback(joystick_udev_callback) < 0) {
if (SDL_UDEV_AddCallback(joystick_udev_callback) < 0) {
SDL_UDEV_Quit();
return SDL_SetError("Could not set up joystick <-> udev callback");
}