Edit: cdc-wdm.h
/* 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 */
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