On Sat, 14 Jan 2006, Walt H wrote:
> OK. No lines reporting handoff problems in any of the boots. The only
> boot in which I still have a keyboard is when I comment out the OHCI
> handoff. I saved dmesg's of all boots, and ran diffs against them. The
> uncommented handoffs and the EHCI commented handoff are essentially the
> same (where the OHCI handoff code still executes in both). The relevant
> (diff'd) sections are:
>
> @@ -153,3 +153,2 @@
> -i8042.c: Can't read CTR while initializing i8042.
> -pnp: Device 00:09 does not supported disabling.
> -pnp: Device 00:08 does not supported disabling.
> +serio: i8042 AUX port at 0x60,0x64 irq 12
> +serio: i8042 KBD port at 0x60,0x64 irq 1
> @@ -219,0 +219 @@
> +input: AT Translated Set 2 keyboard as /class/input/input0
> @@ -234,0 +235 @@
> +input: PS/2 Generic Mouse as /class/input/input1
> @@ -268 +269 @@
> -input: Logitech USB Mouse as /class/input/input0
> +input: Logitech USB Mouse as /class/input/input2
>
> Hope that helps,
That's good; you've narrowed it down to the OHCI handoff.
Now try editing the quirk_usb_handoff_ohci() routine. There's the section
enclosed in "#ifndef __hppa__" and the two writel() calls after it. Add
printk statements to see which writes are taking place, try commenting out
some of the writes -- in general, see what makes a difference.
Unfortunately I can't give you any detailed suggestions because I don't
know how the hardware is supposed to work.
Alan Stern
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