diff options
Diffstat (limited to 'sound/usb/usbaudio.h')
| -rw-r--r-- | sound/usb/usbaudio.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h index 91d038043..4b4327b45 100644 --- a/sound/usb/usbaudio.h +++ b/sound/usb/usbaudio.h @@ -37,11 +37,11 @@ struct snd_usb_audio { struct usb_interface *pm_intf; u32 usb_id; struct mutex mutex; - struct rw_semaphore shutdown_rwsem; - unsigned int shutdown:1; - unsigned int probing:1; - unsigned int in_pm:1; unsigned int autosuspended:1; + atomic_t active; + atomic_t shutdown; + atomic_t usage_count; + wait_queue_head_t shutdown_wait; unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */ int num_interfaces; @@ -94,6 +94,7 @@ enum quirk_type { QUIRK_MIDI_AKAI, QUIRK_MIDI_US122L, QUIRK_MIDI_FTDI, + QUIRK_MIDI_CH345, QUIRK_AUDIO_STANDARD_INTERFACE, QUIRK_AUDIO_FIXED_ENDPOINT, QUIRK_AUDIO_EDIROL_UAXX, @@ -115,4 +116,7 @@ struct snd_usb_audio_quirk { #define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16)) #define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24)) +int snd_usb_lock_shutdown(struct snd_usb_audio *chip); +void snd_usb_unlock_shutdown(struct snd_usb_audio *chip); + #endif /* __USBAUDIO_H */ |