1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * USB CDC Device Management userspace API definitions 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or 6*4882a593Smuzhiyun * modify it under the terms of the GNU General Public License 7*4882a593Smuzhiyun * version 2 as published by the Free Software Foundation. 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef _UAPI__LINUX_USB_CDC_WDM_H 11*4882a593Smuzhiyun #define _UAPI__LINUX_USB_CDC_WDM_H 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <linux/types.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* 16*4882a593Smuzhiyun * This IOCTL is used to retrieve the wMaxCommand for the device, 17*4882a593Smuzhiyun * defining the message limit for both reading and writing. 18*4882a593Smuzhiyun * 19*4882a593Smuzhiyun * For CDC WDM functions this will be the wMaxCommand field of the 20*4882a593Smuzhiyun * Device Management Functional Descriptor. 21*4882a593Smuzhiyun */ 22*4882a593Smuzhiyun #define IOCTL_WDM_MAX_COMMAND _IOR('H', 0xA0, __u16) 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #endif /* _UAPI__LINUX_USB_CDC_WDM_H */ 25