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ALSA: usb-audio: use usb headers rather than define structs locally

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Use struct definitions from linux/usb/midi.h rather than locally
define the structs in sound/usb/midi.c.

Signed-off-by: George Harker <george@george-graphics.co.uk>
Link: https://lore.kernel.org/r/20210226212457.24538-1-george@george-graphics.co.uk
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
George Harker 2021-02-26 21:24:56 +00:00 committed by Takashi Iwai
parent d9c05d22da
commit d6e68c57e3
1 changed files with 2 additions and 18 deletions
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20
sound/usb/midi.c
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@ -47,6 +47,7 @@
#include <linux/usb.h>
#include <linux/wait.h>
#include <linux/usb/audio.h>
#include <linux/usb/midi.h>
#include <linux/module.h>
#include <sound/core.h>
@ -77,23 +78,6 @@ MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_DESCRIPTION("USB Audio/MIDI helper module");
MODULE_LICENSE("Dual BSD/GPL");
struct usb_ms_header_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bcdMSC[2];
__le16 wTotalLength;
} __attribute__ ((packed));
struct usb_ms_endpoint_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bNumEmbMIDIJack;
__u8 baAssocJackID[];
} __attribute__ ((packed));
struct snd_usb_midi_in_endpoint;
struct snd_usb_midi_out_endpoint;
struct snd_usb_midi_endpoint;
@ -1875,7 +1859,7 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi *umidi,
ms_header->bDescriptorType == USB_DT_CS_INTERFACE &&
ms_header->bDescriptorSubtype == UAC_HEADER)
dev_dbg(&umidi->dev->dev, "MIDIStreaming version %02x.%02x\n",
ms_header->bcdMSC[1], ms_header->bcdMSC[0]);
((uint8_t *)&ms_header->bcdMSC)[1], ((uint8_t *)&ms_header->bcdMSC)[0]);
else
dev_warn(&umidi->dev->dev,
"MIDIStreaming interface descriptor not found\n");