/* Sound Blaster remote control stuff */
const struct rc_config *rc_cfg;
- unsigned long rc_hwdep_open;
u32 rc_code;
wait_queue_head_t rc_waitq;
struct urb *rc_urb;
wake_up(&mixer->rc_waitq);
}
-static int snd_usb_sbrc_hwdep_open(struct snd_hwdep *hw, struct file *file)
-{
- struct usb_mixer_interface *mixer = hw->private_data;
-
- if (test_and_set_bit(0, &mixer->rc_hwdep_open))
- return -EBUSY;
- return 0;
-}
-
-static int snd_usb_sbrc_hwdep_release(struct snd_hwdep *hw, struct file *file)
-{
- struct usb_mixer_interface *mixer = hw->private_data;
-
- clear_bit(0, &mixer->rc_hwdep_open);
- smp_mb__after_clear_bit();
- return 0;
-}
-
static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf,
long count, loff_t *offset)
{
hwdep->iface = SNDRV_HWDEP_IFACE_SB_RC;
hwdep->private_data = mixer;
hwdep->ops.read = snd_usb_sbrc_hwdep_read;
- hwdep->ops.open = snd_usb_sbrc_hwdep_open;
- hwdep->ops.release = snd_usb_sbrc_hwdep_release;
hwdep->ops.poll = snd_usb_sbrc_hwdep_poll;
+ hwdep->exclusive = 1;
mixer->rc_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!mixer->rc_urb)