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. Charles.