Perform the following procedure to uninstall the USB class driver. 1. Check the following. Check that the printer and computer are connected using a USB cable. Check that the printer is on. 2. Perform the following procedure. From the [Start] menu, select [Settings] m² [Control Panel]...
我们来看程序的第4行,这里有一个判断语句,它是在判断插入的设备是否是USBMSC_INTERFACE_CLASS类型的,这个常量是在usbmsc.h文件中定义的,也就是说如果设备不是USB存储设备,那么就结束这个函数,也就是此驱动只能处理USB存储设备。当发现设备符合此驱动程序的要求后,就通过函数ParseUsbDescriptors()来解析这个设备,这个...
上面运行的LoadDriver()和LoadLibrary()函数会在第一次加载对应的驱动的时候,运行驱动程序的DllMain()入口函数。到这里就解释了从USBD驱动转向了Client驱动的整个过程。 解释一下上面提到的几个函数。USBInstallDriver函数负责向注册表添加USB设备驱动的信息,以便下次插入时,能够识别该USB设备。USBUnInstallDriver是在设备...
正如所料,接下来我们就进入到DRIVERS\USB\CLASS\STORAGE\CLASS文件夹下,接触USB设备驱动程序。 我们先来了解两个头文件,分别是STORAGE\INC\usbmsc.h和STORAGE\CLASS\usbmscp.h,其中前者是USB存储设备公用的头文件,后者是需要按照自己的设备更改的头文件。我们先来看前者。 在usbmsc.h这个头文件中,前边定义了很多...
This function uninstalls a universal serial bus (USB) client driver. USB host client drivers must implement this function.复制 BOOLUSBUnInstallDriver(void); ParametersNone.Return ValuesTRUE indicates success. FALSE indicates failure.RemarksA client driver can call this function to deregister from a...
Installing WinUSB by specifying the system-provided device class When you connect your device, you might notice that Windows loadsWinusb.sysautomatically. Otherwise, follow these instructions to load the driver: Plug in your device to the host system. ...
This function uninstalls a universal serial bus (USB) client driver. USB host client drivers must implement this function.SyntaxCopy BOOL USBUnInstallDriver(void); ParametersNone.Return ValueTRUE indicates success. FALSE indicates failure.Remarks...
In the drop-down menu, click Uninstall or Remove. In the Confirm Device Removal dialog box, click the OK button. Restart the computer. NOTE: After the restart, the computer should recognize the camera connection and begin reinstalling the USB driver. Follow any on-screen instructions to compl...
Expand the Keyboard and Mice categories and right-click the device driver and pick Uninstall device Confirm your action before the process continues then select "Uninstall" again to continue Restart your PC then re-plugged your Mouse or Keyboard and see if Windows will detect it automatically ...
If a clean boot works properly, there may be problems with a driver or program on your computer. Reinstall USB Controllers to Fix IO error on USB drive A fault with the USB controllers may occasionally prevent the USB drive option from appearing on your computer. The I/O problem on the ...