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udev: Factor out SDL_EVDEV_GuessDeviceClass

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This works on capability bitfields that can either come from udev or
from ioctls, so it is equally applicable to both udev and non-udev
input device detection.

Signed-off-by: Simon McVittie <smcv@collabora.com>
This commit is contained in:
Simon McVittie 2020-11-11 19:14:34 -08:00
parent 13e7d1a958
commit 8db3171b98
10 changed files with 153 additions and 69 deletions
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5
src/joystick/linux/SDL_sysjoystick.c
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@ -78,6 +78,7 @@
#define BTN_DPAD_RIGHT 0x223
#endif
#include "../../core/linux/SDL_evdev_capabilities.h"
#include "../../core/linux/SDL_udev.h"
#if 0
@ -124,10 +125,6 @@ static int numjoysticks = 0;
static Uint32 last_joy_detect_time;
static time_t last_input_dir_mtime;
#define test_bit(nr, addr) \
(((1UL << ((nr) % (sizeof(long) * 8))) & ((addr)[(nr) / (sizeof(long) * 8)])) != 0)
#define NBITS(x) ((((x)-1)/(sizeof(long) * 8))+1)
static void
FixupDeviceInfoForMapping(int fd, struct input_id *inpid)
{