diff options
Diffstat (limited to 'sound/usb/helper.h')
| -rw-r--r-- | sound/usb/helper.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/usb/helper.h b/sound/usb/helper.h index a6b0e51b3a9..09bd943c43b 100644 --- a/sound/usb/helper.h +++ b/sound/usb/helper.h @@ -28,5 +28,9 @@ unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip, #define snd_usb_get_speed(dev) ((dev)->speed) #endif +static inline int snd_usb_ctrl_intf(struct snd_usb_audio *chip) +{ + return get_iface_desc(chip->ctrl_intf)->bInterfaceNumber; +} #endif /* __USBAUDIO_HELPER_H */ |