/* * Line 6 Linux USB driver * * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, version 2. * */ #ifndef MIDI_H #define MIDI_H #include #include "midibuf.h" #define MIDI_BUFFER_SIZE 1024 struct snd_line6_midi { /* Pointer back to the Line 6 driver data structure */ struct usb_line6 *line6; /* MIDI substream for receiving (or NULL if not active) */ struct snd_rawmidi_substream *substream_receive; /* MIDI substream for transmitting (or NULL if not active) */ struct snd_rawmidi_substream *substream_transmit; /* Number of currently active MIDI send URBs */ int num_active_send_urbs; /* Spin lock to protect MIDI buffer handling */ spinlock_t lock; /* Wait queue for MIDI transmission */ wait_queue_head_t send_wait; /* Buffer for incoming MIDI stream */ struct midi_buffer midibuf_in; /* Buffer for outgoing MIDI stream */ struct midi_buffer midibuf_out; }; extern int line6_init_midi(struct usb_line6 *line6); extern void line6_midi_receive(struct usb_line6 *line6, unsigned char *data, int length); #endif option> net-next plumbingsTobias Klauser
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authorManuel Lauss <manuel.lauss@gmail.com>2017-01-24 10:12:00 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2017-01-24 10:27:34 -0800
commit3f5c34c6d4688b3b7e1dbc7bbc68a2f03a0d6b0c (patch)
treeb9387d85890c4466d9cf3d3145c95e0b07235234 /include/media
parent62ed8ceda1699acae01b666497f004bfd3d67a6f (diff)
Input: wm97xx - make missing platform data non-fatal
Commit 6480af4915d6 ("power_supply: wm97xx_battery: use power_supply_get_drvdata") made wm97xx platform data mandatory, although it's still optional. This patch fixes an oops during driver probe on one of my MIPS boards with a wm9712. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'include/media')