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joystick: Ensure HIDAPI is initialized before calling it

This commit is contained in:
Andrew Eikum 2019-07-31 11:14:48 -05:00
parent e149f4c4b0
commit c172f36bf4
2 changed files with 12 additions and 0 deletions
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10
src/joystick/hidapi/SDL_hidapijoystick.c
View File

@ -99,6 +99,7 @@ static SDL_HIDAPI_DeviceDriver *SDL_HIDAPI_drivers[] = {
static int SDL_HIDAPI_numdrivers = 0;
static SDL_HIDAPI_Device *SDL_HIDAPI_devices;
static int SDL_HIDAPI_numjoysticks = 0;
static SDL_bool initialized = SDL_FALSE;
#if defined(SDL_USE_LIBUDEV)
static const SDL_UDEV_Symbols * usyms = NULL;
@ -696,6 +697,10 @@ HIDAPI_JoystickInit(void)
{
int i;
if (initialized) {
return 0;
}
if (hid_init() < 0) {
SDL_SetError("Couldn't initialize hidapi");
return -1;
@ -709,6 +714,9 @@ HIDAPI_JoystickInit(void)
SDL_HIDAPIDriverHintChanged, NULL);
HIDAPI_InitializeDiscovery();
HIDAPI_JoystickDetect();
initialized = SDL_TRUE;
return 0;
}
@ -1059,6 +1067,8 @@ HIDAPI_JoystickQuit(void)
SDL_HIDAPI_numjoysticks = 0;
hid_exit();
initialized = SDL_FALSE;
}
SDL_JoystickDriver SDL_HIDAPI_JoystickDriver =

2
src/joystick/linux/SDL_sysjoystick.c
View File

@ -120,6 +120,8 @@ IsJoystick(int fd, char *namebuf, const size_t namebuflen, SDL_JoystickGUID *gui
}
#ifdef SDL_JOYSTICK_HIDAPI
SDL_HIDAPI_JoystickDriver.Init();
if (HIDAPI_IsDevicePresent(inpid.vendor, inpid.product, inpid.version)) {
/* The HIDAPI driver is taking care of this device */
return 0;