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Fixed DualSense controllers not being picked up by the HIDAPI driver

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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 c6ee9780df4286f66c38f3fa9732daa9afe0a8a3)
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) {