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 | |