static int xpad_led_probe(struct usb_xpad *xpad)
{
static atomic_t led_seq = ATOMIC_INIT(0);
long led_no;
struct xpad_led *led;
struct led_classdev *led_cdev;
int error;
if (xpad->xtype != XTYPE_XBOX360)
return 0;
xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
if (!led)
return -ENOMEM;
led_no = (long)atomic_inc_return(&led_seq) - 1;
snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
led->xpad = xpad;
led_cdev = &led->led_cdev;
led_cdev->name = led->name;
led_cdev->brightness_set = xpad_led_set;
error = led_classdev_register(&xpad->udev->dev, led_cdev);
if (error) {
kfree(led);
xpad->led = NULL;
return error;
}
/*
* Light up the segment corresponding to controller number
*/
xpad_send_led_command(xpad, (led_no % 4) + 2);
return 0;
}
static void xpad_identify_controller(struct usb_xpad *xpad)
{
/* Light up the segment corresponding to controller number */
xpad_send_led_command(xpad, (xpad->led_no % 4) + 2);
}
/*
* Light up the segment corresponding to the pad number on
* Xbox 360 Controllers.
*/
static void xpad_identify_controller(struct usb_xpad *xpad)
{
xpad_send_led_command(xpad, (xpad->pad_nr % 4) + 2);
}