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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note *//* * <linux/usb/midi.h> -- USB MIDI definitions. * * Copyright (C) 2006 Thumtronics Pty Ltd. * Developed for Thumtronics by Grey Innovation * Ben Williamson <ben.williamson@greyinnovation.com> * * This software is distributed under the terms of the GNU General Public * License ("GPL") version 2, as published by the Free Software Foundation. * * This file holds USB constants and structures defined * by the USB Device Class Definition for MIDI Devices. * Comments below reference relevant sections of that document: * * http://www.usb.org/developers/devclass_docs/midi10.pdf */
#ifndef __LINUX_USB_MIDI_H#define __LINUX_USB_MIDI_H
#include <linux/types.h>
/* A.1 MS Class-Specific Interface Descriptor Subtypes */#define USB_MS_HEADER 0x01#define USB_MS_MIDI_IN_JACK 0x02#define USB_MS_MIDI_OUT_JACK 0x03#define USB_MS_ELEMENT 0x04
/* A.2 MS Class-Specific Endpoint Descriptor Subtypes */#define USB_MS_GENERAL 0x01
/* A.3 MS MIDI IN and OUT Jack Types */#define USB_MS_EMBEDDED 0x01#define USB_MS_EXTERNAL 0x02
/* 6.1.2.1 Class-Specific MS Interface Header Descriptor */struct usb_ms_header_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __le16 bcdMSC; __le16 wTotalLength;} __attribute__ ((packed));
#define USB_DT_MS_HEADER_SIZE 7
/* 6.1.2.2 MIDI IN Jack Descriptor */struct usb_midi_in_jack_descriptor { __u8 bLength; __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */ __u8 bDescriptorSubtype; /* USB_MS_MIDI_IN_JACK */ __u8 bJackType; /* USB_MS_EMBEDDED/EXTERNAL */ __u8 bJackID; __u8 iJack;} __attribute__ ((packed));
#define USB_DT_MIDI_IN_SIZE 6
struct usb_midi_source_pin { __u8 baSourceID; __u8 baSourcePin;} __attribute__ ((packed));
/* 6.1.2.3 MIDI OUT Jack Descriptor */struct usb_midi_out_jack_descriptor { __u8 bLength; __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */ __u8 bDescriptorSubtype; /* USB_MS_MIDI_OUT_JACK */ __u8 bJackType; /* USB_MS_EMBEDDED/EXTERNAL */ __u8 bJackID; __u8 bNrInputPins; /* p */ struct usb_midi_source_pin pins[]; /* [p] */ /*__u8 iJack; -- omitted due to variable-sized pins[] */} __attribute__ ((packed));
#define USB_DT_MIDI_OUT_SIZE(p) (7 + 2 * (p))
/* As above, but more useful for defining your own descriptors: */#define DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(p) \struct usb_midi_out_jack_descriptor_##p { \ __u8 bLength; \ __u8 bDescriptorType; \ __u8 bDescriptorSubtype; \ __u8 bJackType; \ __u8 bJackID; \ __u8 bNrInputPins; \ struct usb_midi_source_pin pins[p]; \ __u8 iJack; \} __attribute__ ((packed))
/* 6.2.2 Class-Specific MS Bulk Data Endpoint Descriptor */struct usb_ms_endpoint_descriptor { __u8 bLength; /* 4+n */ __u8 bDescriptorType; /* USB_DT_CS_ENDPOINT */ __u8 bDescriptorSubtype; /* USB_MS_GENERAL */ __u8 bNumEmbMIDIJack; /* n */ __u8 baAssocJackID[]; /* [n] */} __attribute__ ((packed));
#define USB_DT_MS_ENDPOINT_SIZE(n) (4 + (n))
/* As above, but more useful for defining your own descriptors: */#define DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(n) \struct usb_ms_endpoint_descriptor_##n { \ __u8 bLength; \ __u8 bDescriptorType; \ __u8 bDescriptorSubtype; \ __u8 bNumEmbMIDIJack; \ __u8 baAssocJackID[n]; \} __attribute__ ((packed))
#endif /* __LINUX_USB_MIDI_H */