| // 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); |
| |
| // Fetch the descriptor using the provided descriptor ID and language ID. If |
| // the language ID requested is not available, the first entry of the language |
| // ID table will be used instead and be provided in the updated version of the |
| // parameter. |
| // |
| // The string will be encoded using UTF-8, and will be truncated to fit the |
| // space provided by the buflen parameter. buflen will be updated to indicate |
| // the amount of space needed to hold the actual UTF-8 encoded string lenth, and |
| // may be larger than the original value passed. Embedded nulls may be present |
| // in the string, and the result may not be null terminated if the string |
| // occupies the entire provided buffer. |
| // |
| zx_status_t usb_device_get_string_descriptor(usb_device_t* dev, |
| uint8_t desc_id, uint16_t* inout_lang_id, |
| uint8_t* buf, size_t* inout_buflen); |
