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