On Fri, May 03, 2019 at 04:22:01PM +0800, Charles Yeh wrote: > Johan Hovold <johan@xxxxxxxxxx> 於 2019年5月3日 週五 下午3:41寫道: > > > Perhaps you did not use the usb-next branch? That branch has the following > > commit: > > > > https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial.git/commit/?h=usb-next&id=f64c3ab230682e8395a7fbd01f3eb5140c837d4e > > > > OK, I will do another patch witch > "https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial.git/snapshot/usb-serial-f64c3ab230682e8395a7fbd01f3eb5140c837d4e.tar.gz" > > I already have seen pl2303_update_reg in the pl2303.c file. It's better if you use the full usb-next branch, e.g. git clone https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial.git cd usb-serial git checkout -b pl2303 usb-next or similar. That way you can easily fetch any future changes. Johan