diff options
Diffstat (limited to 'sound/usb/midi.c')
| -rw-r--r-- | sound/usb/midi.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/sound/usb/midi.c b/sound/usb/midi.c index 9da74d2e8eee..9a4e82cf4ef9 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -2187,6 +2187,34 @@ void snd_usbmidi_input_start(struct list_head* p) EXPORT_SYMBOL(snd_usbmidi_input_start); /* + * Prepare for suspend. Typically called from the USB suspend callback. + */ +void snd_usbmidi_suspend(struct list_head *p) +{ + struct snd_usb_midi *umidi; + + umidi = list_entry(p, struct snd_usb_midi, list); + mutex_lock(&umidi->mutex); + snd_usbmidi_input_stop(p); + mutex_unlock(&umidi->mutex); +} +EXPORT_SYMBOL(snd_usbmidi_suspend); + +/* + * Resume. Typically called from the USB resume callback. + */ +void snd_usbmidi_resume(struct list_head *p) +{ + struct snd_usb_midi *umidi; + + umidi = list_entry(p, struct snd_usb_midi, list); + mutex_lock(&umidi->mutex); + snd_usbmidi_input_start(p); + mutex_unlock(&umidi->mutex); +} +EXPORT_SYMBOL(snd_usbmidi_resume); + +/* * Creates and registers everything needed for a MIDI streaming interface. */ int snd_usbmidi_create(struct snd_card *card, |