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 c6ee9780df4286f66c38f3fa9732daa9afe0a8a3)

src/hidapi/linux/hid.c

@@ -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) {