* [x86-64] ioctl32 for USB
@ 2006-06-26 11:30 Piotr Kaczuba
2006-06-26 11:49 ` Andi Kleen
0 siblings, 1 reply; 2+ messages in thread
From: Piotr Kaczuba @ 2006-06-26 11:30 UTC (permalink / raw)
To: linux-kernel
Hello!
I'm running a 64-bit kernel and 32-bit userspace. There seems to be some
unimplemented compability ioctls regarding USB. Dmesg shows the
following:
[184966.543022] ioctl32(hald-probe-hidd:10760): Unknown cmd fd(4)
cmd(81004806){01} arg(ffb52dd0) on /dev/usb/hiddev0
and
[50974.410204] ioctl32(vmware-vmx:3470): Unknown cmd fd(140)
cmd(40109980){00} arg(ffb551a0) on /proc/bus/usb/002/001
Have it been only forgotten or are there other more serious reasons that
these ioctls are missing?
Piotr Kaczuba
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [x86-64] ioctl32 for USB
2006-06-26 11:30 [x86-64] ioctl32 for USB Piotr Kaczuba
@ 2006-06-26 11:49 ` Andi Kleen
0 siblings, 0 replies; 2+ messages in thread
From: Andi Kleen @ 2006-06-26 11:49 UTC (permalink / raw)
To: Piotr Kaczuba; +Cc: linux-kernel
Piotr Kaczuba <pepe@attika.ath.cx> writes:
> Hello!
>
> I'm running a 64-bit kernel and 32-bit userspace. There seems to be some
> unimplemented compability ioctls regarding USB. Dmesg shows the
> following:
>
> [184966.543022] ioctl32(hald-probe-hidd:10760): Unknown cmd fd(4)
> cmd(81004806){01} arg(ffb52dd0) on /dev/usb/hiddev0
>
> and
>
> [50974.410204] ioctl32(vmware-vmx:3470): Unknown cmd fd(140)
> cmd(40109980){00} arg(ffb551a0) on /proc/bus/usb/002/001
>
> Have it been only forgotten or are there other more serious reasons that
> these ioctls are missing?
Some of the USB ioctls were basically impossible to compat due to
broken design. Maybe it's now possible with is_compat_task,
but would be still extremly ugly.
-Andi
^ permalink raw reply [flat|nested] 2+ messages in thread
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2006-06-26 11:30 [x86-64] ioctl32 for USB Piotr Kaczuba
2006-06-26 11:49 ` Andi Kleen
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