Re: sys32_ioctl issue

On Tue, 2003-04-29 at 09:43, Kevin Curtis wrote:
> Hi,
> 	many thanks to the list for getting me of the ground with porting
> our Intel 32 bit drivers to sparc64.  I have now managed to compile and load
> the driver module successfully.  
> 
> The next step is to load our card with it's firmware.  We do this through an
> ioctl interface to the driver with a loader program.  I was getting on fine
> with this until I came to the first ioctl operation.  In the 32 bit Intel
> version the ioctl command is calculated (with the _IO macro) as 0x7800, and
> this comes out as 0x20007800 on sparc64 with the same calculation.  The
> sys32_ioctl function reports the following error:
> Apr 29 15:37:16 icarus kernel: sys32_ioctl(fsx25load:5058): Unknown cmd
> fd(3) cmd(20007800) arg(00000000)
> 
> How is sys32_ioctl making the conversion of the ioctl and what does my
> fsx25load program or driver need to do to solve the problem?

Sparc64 ioctls have to be listed in the list inside
arch/sparc64/kernel/ioctl32.c, and translated if needed.

~spot
---
Tom "spot" Callaway <tcallawa(a)redhat*com> SAIR LCA, RHCE
Red Hat Enterprise Architect :: http://www.redhat.com
Project Leader for Aurora Sparc Linux :: http://auroralinux.org
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