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Fixed DualSense controllers not being picked up by the HIDAPI driver 

The hidraw device may take additional time to get the correct permissions for us to open it. In my tests on Steam Deck hardware, this ranges between 5-8ms.

(cherry picked from commit c6ee9780df)
This commit is contained in:
Sam Lantinga 2023-06-18 12:19:54 -07:00
parent 333a03f1ec
commit d97423ebab
1 changed files with 11 additions and 1 deletions
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12
src/hidapi/linux/hid.c
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@ -729,6 +729,8 @@ hid_device * hid_open(unsigned short vendor_id, unsigned short product_id, const
hid_device * HID_API_EXPORT hid_open_path(const char *path, int bExclusive)
{
const int MAX_ATTEMPTS = 10;
int attempt;
hid_device *dev = NULL;
hid_init();
@ -736,7 +738,15 @@ hid_device * HID_API_EXPORT hid_open_path(const char *path, int bExclusive)
dev = new_hid_device();
/* OPEN HERE */
dev->device_handle = open(path, O_RDWR | O_CLOEXEC);
for (attempt = 1; attempt <= MAX_ATTEMPTS; ++attempt) {
dev->device_handle = open(path, O_RDWR | O_CLOEXEC);
if (dev->device_handle < 0 && errno == EACCES) {
/* udev might be setting up permissions, wait a bit and try again */
usleep(1 * 1000);
continue;
}
break;
}
/* If we have a good handle, return it. */
if (dev->device_handle >= 0) {