Hi,
I think EINVAL is returned when the command code is not unique in the
kernel, it has to be unique across all modules, so maybe you coud check if
that is the case for your thrid command.
HTH
Amit
Danilo Reinhardt <Danilo.Reinhardt@de.bosch.com>@nl.linux.org on 06/09/2004
05:27:06 PM
Sent by: kernelnewbies-bounce@nl.linux.org
To: Kernel Newbies <kernelnewbies@nl.linux.org>
cc:
Subject: ioctl and _IOx macros
Hi folks,
just a question, now i dont know what else i can do... thats the
problem:
These are the ioctl commands defined by me:
#define TIS_IOC_FIRST _IOW('&', 0, struct st_cmd_createBridge)
#define TIS_IOC_SECOND _IOW('&', 1, __u32)
#define TIS_IOC_THIRD _IOW('&', 2, __u32)
The first to are working. If i use the third, ioctl returns immediatelly
with an error EINVAL. The drivers ioctl function ist not called.
I call ioctl the same way as the second one... no difference for me...
any ideas?
Bye Dan
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