Re: Accessing a block device in kernel space..

[Anupam Kapoor <anupam.kapoor@xxxxxxxxx>]

i think there is an example of what you are trying to achieve on
http://lwn.net/Articles/driver-porting/, scroll down and look for the
section titled 'block devices'

hth
anupam

On Mon, 30 Aug 2004 14:01:42 -0700 (PDT), Ahmed A <ahmedcali@xxxxxxxxx> wrote:
> 
> Hello,
> 
> I am writing a kernel module that will send read/write
> requests to block device.  If I have the name of the
> block device (e.g /dev/sda), then:
> 
> 1. How do I find the "request_queue" of the block
> device to pass to __make_request.
> 
> 2. My understanding is that once I have the
> request_queue, all I need to do is call __make_request
> to have the block device complete the operation.  Is
> this accurate?
> 
> 3. Do I need to do any sort of reservation/locking of
> the block device before I access it (send it
> commands).
> 
> Thank you in advance,
> Ahmed.
> 
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