diff options
Diffstat (limited to 'sound/usb/helper.h')
| -rw-r--r-- | sound/usb/helper.h | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/sound/usb/helper.h b/sound/usb/helper.h index 805c300dd004..0372e050b3dc 100644 --- a/sound/usb/helper.h +++ b/sound/usb/helper.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __USBAUDIO_HELPER_H #define __USBAUDIO_HELPER_H @@ -13,24 +14,33 @@ int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip, struct usb_host_interface *alts); +struct usb_host_interface * +snd_usb_get_host_interface(struct snd_usb_audio *chip, int ifnum, int altsetting); + +int snd_usb_add_ctrl_interface_link(struct snd_usb_audio *chip, int ifnum, + int ctrlif); + +struct usb_host_interface *snd_usb_find_ctrl_interface(struct snd_usb_audio *chip, + int ifnum); + /* * retrieve usb_interface descriptor from the host interface * (conditional for compatibility with the older API) */ -#ifndef get_iface_desc #define get_iface_desc(iface) (&(iface)->desc) #define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc) #define get_ep_desc(ep) (&(ep)->desc) #define get_cfg_desc(cfg) (&(cfg)->desc) -#endif -#ifndef snd_usb_get_speed #define snd_usb_get_speed(dev) ((dev)->speed) -#endif -static inline int snd_usb_ctrl_intf(struct snd_usb_audio *chip) +static inline int snd_usb_ctrl_intf(struct usb_host_interface *ctrl_intf) { - return get_iface_desc(chip->ctrl_intf)->bInterfaceNumber; + return get_iface_desc(ctrl_intf)->bInterfaceNumber; } +/* in validate.c */ +bool snd_usb_validate_audio_desc(void *p, int protocol); +bool snd_usb_validate_midi_desc(void *p); + #endif /* __USBAUDIO_HELPER_H */ |