linux-kernel - Re: Testing to see if a driver is loaded

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Message-ID: <AANLkTikRYRsp6pTSUk3ret2ZV9m8ByqEWcEcUMOHXcSa@mail.gmail.com>
Date:	Mon, 14 Jun 2010 12:04:34 -0700
From:	Robert Emanuele <rob@...nuele.us>
To:	Raj singh <linux.rajsingh@...il.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Testing to see if a driver is loaded

Hi Raj,

I appreciate the thought, but if you read my email closely you'll see
that I was looking for how to find if a driver is loaded into the
kernel (module or not) from within another driver's probe function.

--Rob

On Sun, Jun 13, 2010 at 11:48 PM, Raj singh <linux.rajsingh@...il.com> wrote:
> Hi ,
>         You can use lsmod command...
>
> login as root & type lsmod | head -10...it will show you a list of drivers
> currently loaded in your kernel....
>
>
> Raj.
>
> On Sun, Jun 13, 2010 at 10:03 AM, Robert Emanuele <rob@...nuele.us> wrote:
>>
>> Greetings once again,
>>
>> I was wondering if there is a simple way to test if a driver is loaded
>> from within another driver's probe?  I have one driver that depends on
>> another.  I see several *_find_device functions in
>> include/linux/device.h.  I haven't found a "find driver" nor an
>> arbitrary way of doing that.
>>
>> Thanks for any guidance,
>>
>> Rob
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