Arjan van de Ven wrote:
On Thu, 2006-03-23 at 07:06 -0800, William D Waddington wrote:
Apologies for dashing this off without the proper homework. My
customer is out of country doing an installation, and didn't test
this configuration first :(
Customer is running RHEL3 on a 64 bit PC. Running the 64 bit kernel
and my 64 bit driver. They are calling the driver from their 32 bit
app. The driver supports a whole mess of ioctls.
It seems that the kernel is trapping the 32-bit ioctl call and returning
an error to the app w/out calling the driver. It looks like
register_ioctl32_conversion() can convice the kernel that the driver can
handle 32-bit calls, but it has to be called for each ioctl cmd (??)
you forgot to attach you code btw or post the url to it..
No I didn't :) It's just too ugly for public view. And I notice it
needs some other fix-ups like fixed width data types in the ioctl
routine...
Thanks to all for the info. I've got some typing to do.
Bill
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