text: /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  /*
   * 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 __LINUX_USB_CDC_WDM_H
  #define __LINUX_USB_CDC_WDM_H
  
  #include <linux/types.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 /* __LINUX_USB_CDC_WDM_H */
  