| /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
| |
| #ifndef __UAPI_LINUX_USB_G_HID_H |
| #define __UAPI_LINUX_USB_G_HID_H |
| |
| #include <linux/types.h> |
| |
| /* Maximum HID report length for High-Speed USB (i.e. USB 2.0) */ |
| #define MAX_REPORT_LENGTH 64 |
| |
| /** |
| * struct usb_hidg_report - response to GET_REPORT |
| * @report_id: report ID that this is a response for |
| * @userspace_req: |
| * !0 this report is used for any pending GET_REPORT request |
| * but wait on userspace to issue a new report on future requests |
| * 0 this report is to be used for any future GET_REPORT requests |
| * @length: length of the report response |
| * @data: report response |
| * @padding: padding for 32/64 bit compatibility |
| * |
| * Structure used by GADGET_HID_WRITE_GET_REPORT ioctl on /dev/hidg*. |
| */ |
| struct usb_hidg_report { |
| __u8 report_id; |
| __u8 userspace_req; |
| __u16 length; |
| __u8 data[MAX_REPORT_LENGTH]; |
| __u8 padding[4]; |
| }; |
| |
| /* The 'g' code is used by gadgetfs and hid gadget ioctl requests. |
| * Don't add any colliding codes to either driver, and keep |
| * them in unique ranges. |
| */ |
| |
| #define GADGET_HID_READ_GET_REPORT_ID _IOR('g', 0x41, __u8) |
| #define GADGET_HID_WRITE_GET_REPORT _IOW('g', 0x42, struct usb_hidg_report) |
| |
| #endif /* __UAPI_LINUX_USB_G_HID_H */ |
