1 #ifndef __USBAUDIO_ENDPOINT_H 2 #define __USBAUDIO_ENDPOINT_H 3 4 #define SND_USB_ENDPOINT_TYPE_DATA 0 5 #define SND_USB_ENDPOINT_TYPE_SYNC 1 6 7 struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip, 8 struct usb_host_interface *alts, 9 int ep_num, int direction, int type); 10 11 int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep, 12 struct snd_pcm_hw_params *hw_params, 13 struct audioformat *fmt, 14 struct snd_usb_endpoint *sync_ep); 15 16 int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep); 17 void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep, 18 int force, int can_sleep, int wait); 19 int snd_usb_endpoint_activate(struct snd_usb_endpoint *ep); 20 int snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep); 21 void snd_usb_endpoint_free(struct list_head *head); 22 23 int snd_usb_endpoint_implict_feedback_sink(struct snd_usb_endpoint *ep); 24 int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep); 25 26 void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep, 27 struct snd_usb_endpoint *sender, 28 const struct urb *urb); 29 30 #endif /* __USBAUDIO_ENDPOINT_H */ 31