Messages in this thread | | | Date | Mon, 24 Aug 2009 17:09:20 -0700 | Subject | Re: serio / atkbd / PS/2 Strangeness with Serial port adapter | From | Matt Causey <> |
| |
On Mon, Aug 10, 2009 at 1:34 AM, Dmitry Torokhov<dmitry.torokhov@gmail.com> wrote:
>> [ 459.004227] drivers/input/serio/i8042.c: fe <- i8042 (interrupt, 1, >> 12, timeout) [445118] >> [20171.684870] drivers/input/serio/i8042.c: 0b <- i8042 (interrupt, 0, >> 1) [20162195] >> >> However - the atkbd driver does not pick the device up at all. >> > > Your device is steadely refusing to say that it is a keyboard - and so > atkbd driver does not bind to it. > >> So, I did find a workaround (which is NOT acceptable for this >> deployment). Remember the PS/2 'wedge' I mentioned? Well, it has an >> extra PS/2 port for your keyboard. If I connect a PS/2 keyboard to >> that thing, suddenly my scanner starts working. >> >> We see some chatter from the controller driver, then one of these: >> >> [23811.805578] input: AT Translated Set 2 keyboard as >> /devices/platform/i8042/serio0/input/input6 >> > > That happened because apparently the 'wedge' passes the inquirys to > the real keyboard and it answers propery. > > I think the "i8042.dumbkbd" kernel parameter will solve your issue. > > -- > Dmitry >
That's great. I think it's the only option that I did not try. ;-) Works great!
In case it matters:
blah blah/ # dmesg | grep i8042 [ 0.000000] Kernel command line: initrd=ramdisk.gz video="vesafb:mtrr,ywrap,1024x768-32@85" i8042.dumbkbd BOOT_IMAGE=bzImage auto [ 14.046511] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 14.046578] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 15.804210] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2 blah blah/ #
Looks like it just decides that there must be a keyboard there, whether or not there really is one.
Are there any downsides to using this kernel parameter?
Thanks!
-- Matt -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |