On Sun, Mar 06, 2016 at 12:20:22AM +0530, Shraddha Barke wrote: > > I've discussed with Samuel and he suggested using a proper interface > provided by the kernel to access serial ports and make speakup use that > instead of direct port poking. > > the I/O operations are factorized into the functions > - spk_serial_synth_probe > - spk_serial_out > - spk_synth_immediate > > I'll be adding equivalents of these functions that will use proper kernel > APIs and then test them. I should add a serial_out method instead of > spk_serial_out in serialio.c > How to properly open a serial port and write to it? What essentially would > be the difference between these functions? Well, outb() isn't the "real" way to do this, that's only talking directly to "old-style" serial ports, going around the back of the whole tty layer. There is a way to talk to any serial port from within the kernel, I thought the serio layer did it, or maybe it was bluetooth, but I can't find it at the moment, sorry. Try digging around a bit, it's there somewhere... thanks, greg k-h -- 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
