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f7881e5e8e
sound/usb/card.c registers USB suspend and resume but did not previously kill the input URBs. This means that USB MIDI devices left open across suspend/resume had non-functional input (output still usually worked, but it looks like that is another issue). Before this change, we would get ESHUTDOWN for each of the input URBs at suspend time, killing input. Signed-off-by: Adam Goode <agoode@google.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
#ifndef __USBMIDI_H
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#define __USBMIDI_H
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/* maximum number of endpoints per interface */
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#define MIDI_MAX_ENDPOINTS 2
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/* data for QUIRK_MIDI_FIXED_ENDPOINT */
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struct snd_usb_midi_endpoint_info {
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int8_t out_ep; /* ep number, 0 autodetect */
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uint8_t out_interval; /* interval for interrupt endpoints */
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int8_t in_ep;
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uint8_t in_interval;
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uint16_t out_cables; /* bitmask */
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uint16_t in_cables; /* bitmask */
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};
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/* for QUIRK_MIDI_YAMAHA, data is NULL */
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/* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info
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* structure (out_cables and in_cables only) */
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/* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk
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* structures, terminated with .ifnum = -1 */
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/* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */
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/* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */
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/* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */
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/* for QUIRK_IGNORE_INTERFACE, data is NULL */
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/* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */
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/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info
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* structure (out_cables and in_cables only) */
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/* for QUIRK_MIDI_CME, data is NULL */
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/* for QUIRK_MIDI_AKAI, data is NULL */
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int snd_usbmidi_create(struct snd_card *card,
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struct usb_interface *iface,
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struct list_head *midi_list,
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const struct snd_usb_audio_quirk *quirk);
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void snd_usbmidi_input_stop(struct list_head* p);
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void snd_usbmidi_input_start(struct list_head* p);
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void snd_usbmidi_disconnect(struct list_head *p);
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void snd_usbmidi_suspend(struct list_head *p);
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void snd_usbmidi_resume(struct list_head *p);
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#endif /* __USBMIDI_H */
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