summaryrefslogtreecommitdiff
path: root/include/uapi/linux/usb/cdc-wdm.h
blob: f03134feebd6a856446f8a35f056d1c3cb71f6da (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
/*
 * USB CDC Device Management userspace API definitions
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 */

#ifndef _UAPI__LINUX_USB_CDC_WDM_H
#define _UAPI__LINUX_USB_CDC_WDM_H

/*
 * This IOCTL is used to retrieve the wMaxCommand for the device,
 * defining the message limit for both reading and writing.
 *
 * For CDC WDM functions this will be the wMaxCommand field of the
 * Device Management Functional Descriptor.
 */
#define IOCTL_WDM_MAX_COMMAND _IOR('H', 0xA0, __u16)

#endif /* _UAPI__LINUX_USB_CDC_WDM_H */