Hi guys,I am in need of your help, unfortunately STs documentation is lacking some information here. I am basically trying to implement a USB device (CDC-ACM to be precise) that utilizes suspend/wakeup. I am using the "STM32_USB-Host-Device_Lib_V2.1.…
STM32F4 USB Composite CDC + MSC I'm in the process of building a USB composite CDC + MSC device on the STM32F4 Discovery board but am having trouble getting windows to recognise it. Using USBlyzer all the descriptor info seems ok but windows will onl…
发现个USB ID站点,对于做设备管理识别的小伙伴特别实用 http://www.linux-usb.org/usb.ids 附录: # # List of USB ID's # # Maintained by Stephen J. Gowdy <linux.usb.ids@gmail.com> # If you have any new entries, please submit them via # http://www.linux-usb.org/usb-ids.html # or s…
Android USB驱动中,上层应用协议里最重要的一个文件是android/kernel/drivers/usb/gadget/android.c.这个文件实现USB的上层应用协议. 首先包含了一些系统级别的头文件,如模块.电源管理.of API等 /* * Gadget Driver for Android * * Copyright (C) 2008 Google, Inc. *.Copyright (c) 2014, The Linux Foundation. All rights re…
所有 USB 驱动必须创建的主要结构是 struct usb_driver. 这个结构必须被 USB 驱动填 充并且包含多个函数回调和变量, 来向 USB 核心代码描述 USB 驱动: struct module *owner 指向这个驱动的模块拥有者的指针. USB 核心使用它正确地引用计数这个 USB 驱 动, 以便它不被在不合适的时刻卸载. 这个变量应当设置到 THIS_MODULE 宏. const char *name 指向驱动名子的指针. 它必须在内核 USB 驱动中是唯一的并且通常…