On Wednesday 24 March 2010 02:21:22 pm Janusz Krzysztofik wrote: > Hi Dmitry, > > Wednesday 24 March 2010 17:16:04 Dmitry Torokhov wrote: > > On Mon, Mar 22, 2010 at 10:07:47PM +0100, Janusz Krzysztofik wrote: > > > Meanwhile, I've connected the Amstrad Delta keyboard to a PC. I can > > > confirm it speaks PS/2 protocol and is automatically detected by > > > atkbd/i8042 drivers. The initial handshake sequence actually looks > > > exactly the same as that of a standard AT keyboard. > > > > OK, since the device really speaks PS/2 protocol I withdraw my objection > > of using serio + atkbd combo, however we should not be doing translation > > in serio. > > Sure, thank you. > > > > The problem persists about different scancodes, giving > > > wrong keystrokes. > > > > This can be dealt with from userspace by loading correct keymap. > > Sounds acceptable. I hope the machine's built-in matrix keypad won't be > affected. > The scan code to key code mapping is per-device so it should not. > > > Resuming, if there were a boot/module option to atkbd allowing for > > > non-default scancode table, or another similiar possibility, both > > > devices would work with a PC using exsisting drivers. > > > > You can train UDEV to load proper keymap. What does teh device report as > > 'version' in sysfs (output of 'cat > > /sys/bus/serio/devices/serio0/input/input3/id/bustype', please adjust > > serioX and inputX to match yours)? > > When connected to a PC over a real 2-way i8042 port, the device identifies > itself as: > > # grep '' /sys/bus/serio/devices/serio0/input/input2/id/* > /sys/bus/serio/devices/serio0/input/input2/id/bustype:0011 > /sys/bus/serio/devices/serio0/input/input2/id/product:0001 > /sys/bus/serio/devices/serio0/input/input2/id/vendor:0001 > /sys/bus/serio/devices/serio0/input/input2/id/version:ab41 > # > > Unfortunatelly, it looks exactly the same as my standard AT keyboard. > :( > Can you imagine any other possible way of distinguishing them? Not automatically. I mean we could assume that if we see AT keyboard on E3 we'd need special keymap but user would have to override if he connects a regular one. -- Dmitry -- 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
