![]() That feature provides a file system kernel mode, the internal standard may be associated with a variety of functions, particularly by the application layer protocol, i.e., a so-called user-mode driver. Use functionfs configure the latest relevant Andrews usb drives, such as adb, mtp, ptp is achieved in this way. configfs configuration, user configuration mode may be utilized to create the corresponding file system configuration, interface, endpoint, etc., with kernel mode drivers, usb device can achieve a certain function.ģ. usb_compositor_driver, registration / driver to achieve this.Ģ. UDC Driver (i.e., usb device controller driver), the controller associated drive to achieveĪbout usb gadget device driver function, the latest Linux offers a variety of ways.ġ. gadget api (framework) linux usb gadget i.e., the drive frame providedģ. according to the agreement, usb device need to implement the functions. gadget function corresponding to usb function, i.e. Software is generally divided into three levels,ġ. Its main use gadget api framework to achieve. Linux support usb host driver, but also support from device drivers. ![]()
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