On Wed, Nov 07, 2018 at 04:07:03PM +0800, Charles Yeh wrote: > Hi Johan, > I use latest mainline releas: 4.19 to make patch file.. > please refer to attach file: "diff419pl2303c.patch" & " > diff419pl2303h.patch " Please read the file, Documentation/SubmittingPatches in the kernel source tree for how to properly create and submit a patch. We can not do much with these two attached files :( thanks, greg k-h