/* Lock the device, then check to see if we were * disconnected while waiting for the lock to succeed. */ usb_lock_device(hdev); //如果hub断开了,继续hub_event_list中的下一个 if (unlikely(hub->disconnected)) goto loop; /* If the hub has died, clean up after it */ //设备没有...
[ 1.267236] usbcore: registered new interface driver usb-storage [ 16.959215] usb 1-1: new high-speed USB device number 2 using ehci-pci [ 17.134247] usb 1-1.2: new full-speed USB device number 3 using ehci-pci [ 17.233084] usb 1-1.2: New USB device found, idVendor=04f2, idProduct...
/* Lock the device, then check to see if we were * disconnected while waiting for the lock to succeed. */ usb_lock_device(hdev); //如果hub断开了,继续hub_event_list中的下一个 if (unlikely(hub->disconnected)) goto loop; /* If the hub has died, clean up after it */ //设备没有...
[ 0.713043] usbcore: registered new device driver usb [ 0.733666] usbcore: registered new interface driver usb-common [ 0.733676] usbcore: registered new interface driver usb-storage [ 2.091081] usb 1-1: new high-speed USB device number 2 using ehci-pci [ 2.254003] usb-storage 1-1:1.0: ...
3.3.1 USB 设备控制器(UDC) 驱动 概述 所有的 USB Gadget 驱动,最终都是通过 USB 设备控制器(UDC) ,和 主机侧的 USB 控制器(UHC) 进行交互;而且 UDC 是独占的,一旦它被某个 USB Gadget 驱动 使用,直到该 USB Gadget 驱动 被卸载之前,其它的 USB Gadget 驱动 就不能使用它。
Speed: 1000Mb/s # 网卡速率 Duplex: Full # 全双工网卡 Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on MDI-X: off (auto) Supports Wake-on: d Wake-on: d Link detected: yes # 网卡连了网线 # 查看网卡数据包统计信息,关注drop/error之类的指标,这代表网卡层是否有丢包或...
UHCI主机控制器的代码位于linux-2.6.25/drivers/usb/host下面.在配置kernel的时候可以选择将其编译进内核或者编译成模块.模块的入口函数为: uhci_hcd_init().代码如下: static int __init uhci_hcd_init(void) { int retval = -ENOMEM; printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION "%s\n", ...
(2) 尝试 match gadget 的 device 和 driver */ret = check_pending_gadget_drivers(udc);if (ret)goto err_del_udc;mutex_unlock(&udc_lock);}↓static int check_pending_gadget_drivers(struct usb_udc *udc){struct usb_gadget_driver *driver;int ret = 0;/* (2.1) 遍历 `gadget_driver_pending...
Check it out at the following url. https://wiki.archlinux.org/index.php/SSD_Benchmarking USB Pen drives In this test we shall measure the read and write speed of ordinary usb/pen drives. The drives are plugged to standard usb 2 ports. The first one is a sony 4gb usb drive and the...
Linux 内核源码:include\linux\usb.h Linux 内核源码:drivers\hid\usbhid\usbmouse.c 1...BUS/DEV/DRV 模型 "USB 接口"是逻辑上的 USB 设备,编写的 usb_driver 驱动程序,支持的是"USB 接口": USB 控制器或 ...