no-op error in dmesg

Hi, I have one structure called foo. Address of object of foo(say objfoo) is passed to ioctl call status = ioctl(fd, arg, objfoo); But during manipulation I am not getting ioctl error 5 (input/output error). I am more confused about error in dmesg which is *foo: no-op * What does no-op

RE: A confusion about invoking my syscall

From: kernelnewbies-boun...@kernelnewbies.org [mailto:kernelnewbies-boun...@kernelnewbies.org] On Behalf Of ?? Sent: Monday, June 18, 2012 6:40 PM To: kernelnewbies Subject: A confusion about invoking my syscall Hello everyone: I append a simple syscall in kernel. and the function is

Re: A confusion about invoking my syscall

2012/6/19 Jeff Haran jha...@bytemobile.com ** ** ** ** *From:* kernelnewbies-boun...@kernelnewbies.org [mailto: kernelnewbies-boun...@kernelnewbies.org] *On Behalf Of *?? *Sent:* Monday, June 18, 2012 6:40 PM *To:* kernelnewbies *Subject:* A confusion about invoking my syscall **