* mmap problem with personnal code driver
@ 2002-12-19 16:18 Xavier Grave
2002-12-20 13:51 ` Xavier Grave
0 siblings, 1 reply; 2+ messages in thread
From: Xavier Grave @ 2002-12-19 16:18 UTC (permalink / raw
To: linuxppc-dev
Hi all,
I have written a driver for a pci to vme bridge and I have the following
problem : when I try to mmap some pci space to the user memory read is ok but
write seems broken on ppc arch. (it run without problem on x86 arch).
I think the problem is in the pgprot_val(vma->vm_page_prot) value.
I wonder if I haven't see something about that in the list before but I
couldn't find it for the moment.
Does anyone have an idea to help me ? :-)
xavier
PS: for people interested in the vme driver the new version support both
rtlinux, rtai and standard linux.
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: mmap problem with personnal code driver
2002-12-19 16:18 mmap problem with personnal code driver Xavier Grave
@ 2002-12-20 13:51 ` Xavier Grave
0 siblings, 0 replies; 2+ messages in thread
From: Xavier Grave @ 2002-12-20 13:51 UTC (permalink / raw
To: linuxppc-dev
Now that I have reduced the number of thing in my crate (CPU + vme analyser)
I can see that my driver works fine, no more mmap problem.
Sorry for the disturbance...
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
^ permalink raw reply [flat|nested] 2+ messages in thread
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