* get data to user space from kernel
@ 2001-05-15 13:30 sebastien person
0 siblings, 0 replies; only message in thread
From: sebastien person @ 2001-05-15 13:30 UTC (permalink / raw)
To: liste noyau linux
Hi,
I have a network driver that get specific informations from device
but I can't envisage the size of the informations. So I do a kmalloc
call when data come.
But my problem seems to come from the kmalloc because when I try to
send data to user space via an ioctl call I get a segmentation fault.
One solution would be to pass fixed size beetween the both but it
isn't the cleaner.
I've heard about copy_to_user method , is it the best way ?
Is there a way to create a struct in user space dynamicaly from kernel
space ?
thanks for any help ...
sebastien person
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