On Sat, 26 Jan 2008, ian wrote: > > On Sat, 2008-01-26 at 21:41 +0100, Guennadi Liakhovetski wrote: > > > You need to write a line discipline... have a look here: > > http://www.linux.it/~rubini/docs/serial/serial.html > > Hi, > > Thanks for the reply! > > What I cant see from that is how one can avoid touching userspace at all > - as far as I can see, only userspace can actually attach a line > discipline to a serial port. I'd like to have this happen in the kernel > so that I dont need some program sitting idly opening the serial device > the whole time. Right, you need a user-space daemon for that. In your original post you only said > > Ideally I'd want to prevent userspace being able to use the port which > > has the keypad connected, but not touch the other two ports. which I understood as "I want to lock this port, and leave the rest untouched" and not as "avoid touching userspace at all". I don't think you can do it without a user-space programme. Thanks Guennadi --- Guennadi Liakhovetski - To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
