Hi all, I'm having some trouble with the serio support for a touchit213 device, and I'm hoping by describing what's going on someone can offer some clues. The PC in question is a tablet PC with the touchscreen apparently connected to the fourth serial/ps2 port on the i8042 internally, rather than ttyS0 or something. The manufacturer provides an xf86 driver which is extremely ropey, and requires raw access the port. This works: echo -n "serio_raw" > /sys/bus/serio/devices/serio4/drvctl .. and /dev/serio_raw0 is created. Now, there is a serio driver for the touchit213 series, but the obvious: echo -n "touchit213" > /sys/bus/serio/devices/serio4/drvctl .. doesn't work. I don't see anything in the logs; whereas if I use inputattach to connect the driver to ttyS0 (which doesn't have the device, obviously) I can see that the driver is enabled in /var/log/messages and a touch /dev/input/event device is created. I've looked through the source for the touchit213 driver, and it's nice simple code - and I'm assuming that it's failing somewhere in the connect function. However, I'm struggling to get much further than this. I guess the first question is, should this work? Attaching touchit213 to a 'real' serial port appears to work, so I'm making the guess that this is something to do with it being a port on the i8042. However, I don't really know much serio and haven't been able to find any good documentation about it - it could be I'm just missing an appropriate incantation? Second question is, if it's supposed to work - does anyone have some good ideas for debugging this? I think otherwise I'm going to be sprinkling kprintfs() in the driver and seeing what happens - are there any better ways than this? Thanks for any help you can offer, Alex. -- This message was scanned by Better Hosted and is believed to be clean. http://www.betterhosted.com -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
