| Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 1 | #ifndef __USBAUDIO_HELPER_H |
| 2 | #define __USBAUDIO_HELPER_H |
| 3 | |
| 4 | unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size); |
| 5 | |
| 6 | void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype); |
| 7 | void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype); |
| 8 | |
| 9 | int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, |
| 10 | __u8 request, __u8 requesttype, __u16 value, __u16 index, |
| 11 | void *data, __u16 size, int timeout); |
| 12 | |
| 13 | unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip, |
| 14 | struct usb_host_interface *alts); |
| 15 | |
| 16 | /* |
| 17 | * retrieve usb_interface descriptor from the host interface |
| 18 | * (conditional for compatibility with the older API) |
| 19 | */ |
| 20 | #ifndef get_iface_desc |
| 21 | #define get_iface_desc(iface) (&(iface)->desc) |
| 22 | #define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc) |
| 23 | #define get_ep_desc(ep) (&(ep)->desc) |
| 24 | #define get_cfg_desc(cfg) (&(cfg)->desc) |
| 25 | #endif |
| 26 | |
| 27 | #ifndef snd_usb_get_speed |
| 28 | #define snd_usb_get_speed(dev) ((dev)->speed) |
| 29 | #endif |
| 30 | |
| 31 | |
| 32 | #endif /* __USBAUDIO_HELPER_H */ |