1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * USB CDC Device Management userspace API definitions 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License 7 * version 2 as published by the Free Software Foundation. 8 */ 9 10 #ifndef _UAPI__LINUX_USB_CDC_WDM_H 11 #define _UAPI__LINUX_USB_CDC_WDM_H 12 13 #include <linux/types.h> 14 15 /* 16 * This IOCTL is used to retrieve the wMaxCommand for the device, 17 * defining the message limit for both reading and writing. 18 * 19 * For CDC WDM functions this will be the wMaxCommand field of the 20 * Device Management Functional Descriptor. 21 */ 22 #define IOCTL_WDM_MAX_COMMAND _IOR('H', 0xA0, __u16) 23 24 #endif /* _UAPI__LINUX_USB_CDC_WDM_H */ 25
