Hi,
I am creating a kernel module and I need to get some information from
that module. I can do this with ioctl and pass the data to the
user space but it seems a bit unpractical to me, because I do not know
the amount of the data - it can differ. I do not know of any way to
pass a list of struct
On Thu, 6 May 2010, Julian Elischer wrote:
> Date: Thu, 06 May 2010 09:41:32 -0700
> From: Julian Elischer
> To: Lukáš Czerner
> Cc: freebsd-hackers@freebsd.org
> Subject: Re: How to get data from kernel module ?
>
> On 5/6/10 6:38 AM, Lukáš Czerner wrote:
> > H
On Thu, 6 May 2010, Ivan Voras wrote:
> Date: Thu, 06 May 2010 20:12:07 +0200
> From: Ivan Voras
> To: freebsd-hackers@freebsd.org
> Subject: Re: How to get data from kernel module ?
>
> On 05/06/10 15:38, Lukáš Czerner wrote:
> > Hi,
> >
> > I am creati
Hi all,
this may sound a little odd, since I have noticed that there is much
work done to not allow such a thing ($SUBJ). But may be you can help
me and point me to the right direction.
I am writing a kernel module with somewhat similar functionality
like nullfs has, BUT it has to have some featu
On Thu, 22 Apr 2010, Gleb Kurtsou wrote:
> Date: Thu, 22 Apr 2010 22:18:49 +0300
> From: Gleb Kurtsou
> To: Lukáš Czerner
> Cc: freebsd-hackers@freebsd.org
> Subject: Re: How to change vnode operations ?
>
> On (22/04/2010 16:02), Lukáš Czerner wrote:
> > Hi all
On Fri, 23 Apr 2010, Gleb Kurtsou wrote:
> Date: Fri, 23 Apr 2010 12:22:57 +0300
> From: Gleb Kurtsou
> To: Lukáš Czerner
> Cc: freebsd-hackers@freebsd.org
> Subject: Re: How to change vnode operations ?
>
> On (23/04/2010 08:10), Lukáš Czerner wrote:
> > On Thu
On Tue, 27 Apr 2010, Gleb Kurtsou wrote:
> Date: Tue, 27 Apr 2010 13:58:48 +0300
> From: Gleb Kurtsou
> To: Lukáš Czerner
> Cc: freebsd-hackers@freebsd.org
> Subject: Re: How to change vnode operations ?
>
> On (24/04/2010 12:26), Lukáš Czerner wrote:
> > On Fri
Hi,
I know that there are plenty of examples in the kernel code, but I
just can not get it working, so maybe I am doing some stupid mistake
I am not aware of. Please give me a hint if you can.
What I want to do is simply call the ioctl from the userspace with
(char *) argument. Then, in kernel io
On Thu, 29 Apr 2010, Lukáš Czerner wrote:
> Date: Thu, 29 Apr 2010 19:52:45 +0200 (CEST)
> From: Lukáš Czerner
> To: freebsd-hackers@freebsd.org
> Cc: czerner.lu...@gmail.com
> Subject: ioctl, copy string from user
>
> Hi,
>
> I know that there are plenty of example
On Thu, 29 Apr 2010, John Baldwin wrote:
> Date: Thu, 29 Apr 2010 14:18:09 -0400
> From: John Baldwin
> To: freebsd-hackers@freebsd.org
> Cc: Lukáš Czerner
> Subject: Re: ioctl, copy string from user
>
> On Thursday 29 April 2010 1:52:45 pm Lukáš Czerner wrote:
> &g
On Thu, 29 Apr 2010, John Baldwin wrote:
> > >
> > > On Thursday 29 April 2010 1:52:45 pm Lukáš Czerner wrote:
> > > > Hi,
> > > >
> > > > I know that there are plenty of examples in the kernel code, but I
> > > > just can not ge
On Thu, 29 Apr 2010, Lukáš Czerner wrote:
> Date: Thu, 29 Apr 2010 22:28:31 +0200 (CEST)
> From: Lukáš Czerner
> To: John Baldwin
> Cc: Lukáš Czerner , freebsd-hackers@freebsd.org
> Subject: Re: ioctl, copy string from user
>
> On Thu, 29 Apr 2010, John Baldwin wrote
On Thu, 29 Apr 2010, John Baldwin wrote:
> Date: Thu, 29 Apr 2010 16:56:12 -0400
> From: John Baldwin
> To: Lukáš Czerner
> Cc: freebsd-hackers@freebsd.org
> Subject: Re: ioctl, copy string from user
>
> On Thursday 29 April 2010 4:28:31 pm Lukáš Czerner wrote:
> >
On Thu, 29 Apr 2010, Ryan Stone wrote:
> Date: Thu, 29 Apr 2010 17:19:41 -0400
> From: Ryan Stone
> To: Lukáš Czerner
> Cc: freebsd-hackers@freebsd.org
> Subject: Re: ioctl, copy string from user
>
> > Apparently I need to tell ioctl how big is the variable I am
>
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