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Linux kernel mirror (for testing)
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kernel
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linux
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
7struct 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
11int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
12 snd_pcm_format_t pcm_format,
13 unsigned int channels,
14 unsigned int period_bytes,
15 unsigned int rate,
16 struct audioformat *fmt,
17 struct snd_usb_endpoint *sync_ep);
18
19int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, bool can_sleep);
20void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep);
21void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
22int snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
23int snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
24void snd_usb_endpoint_free(struct list_head *head);
25
26int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep);
27int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep);
28
29void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep,
30 struct snd_usb_endpoint *sender,
31 const struct urb *urb);
32
33#endif /* __USBAUDIO_ENDPOINT_H */