| // Copyright 2016 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #pragma once |
| |
| #include <ddk/device.h> |
| |
| zx_status_t usb_device_control(usb_device_t* dev, uint8_t request_type, uint8_t request, |
| uint16_t value, uint16_t index, void* data, size_t length); |
| |
| zx_status_t usb_device_get_descriptor(usb_device_t* dev, uint16_t type, |
| uint16_t index, uint16_t language, void* data, size_t length); |
| |
| // maximum length of a USB string after conversion to UTF8 |
| #define MAX_USB_STRING_LEN ((((UINT8_MAX - sizeof(usb_descriptor_header_t)) / sizeof(uint16_t)) * 3) + 1) |
| |
| // returns length of string returned (including zero termination) or an error |
| zx_status_t usb_device_get_string_descriptor(usb_device_t* dev, uint8_t id, |
| char* buf, size_t buflen); |
