Hi, Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> writes: > The component u_serial provides a glue layer between TTY layer > and a USB gadget device needed to provide a basic serial port > functionality. Currently, u_serial sits under gadget/function > and depends on CONFIG_USB_GADGET to be compiled and used. > > Most of the serial gadget devices are based on a UDC (USB device > controller) and implemented by making use of the Linux gadget > frameworks. But we are facing other implementions as well. One > example can be found with xHCI debug capability. The xHCI debug > capability implements a serial gadget with hardware and firmware, > and provides an interface similar with xHCI host for submitting > and reaping the transfer requests. > > In order to make better use of u_serial when implementing xHCI > debug capability in xHCI driver, this patch moves u_serial.c > from gadget/function to usb/common, and moves u_serial.h from > gadget/function to include/linux/usb. > > Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> NAK, u_serial uses the gadget API. It's definitely not COMMON. -- balbi
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