2 * USB CDC Device Management userspace API definitions
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * version 2 as published by the Free Software Foundation.
9 #ifndef _UAPI__LINUX_USB_CDC_WDM_H
10 #define _UAPI__LINUX_USB_CDC_WDM_H
13 * This IOCTL is used to retrieve the wMaxCommand for the device,
14 * defining the message limit for both reading and writing.
16 * For CDC WDM functions this will be the wMaxCommand field of the
17 * Device Management Functional Descriptor.
19 #define IOCTL_WDM_MAX_COMMAND _IOR('H', 0xA0, __u16)
21 #endif /* _UAPI__LINUX_USB_CDC_WDM_H */