linux-kernel - Re: Allocating memory in the form of 'BITS'

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Message-ID: <47E8D5C7.4020600@gmail.com>
Date:	Tue, 25 Mar 2008 06:36:55 -0400
From:	Scott Lovenberg <scott.lovenberg@...il.com>
To:	Shard Gupta <shard.kgp@...il.com>
CC:	kernelnewbies@...linux.org, linux-kernel@...r.kernel.org
Subject: Re: Allocating memory in the form of 'BITS'

Shard Gupta wrote:
> Hello List,
>
> I am writing a linux kernel module, and I want to allocates the memory
> in a way so I can define each individual bit, like bitfield structure
> in userspace.
> Please tell me the way to do the same.
>
> Thanks and regards,
>
> Shard Gupta
>
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>
>   
If you want to set every bit to zero, you could use calloc(); otherwise, 
I think you'll need to use a bitmask and "<<", ">>" (bit shift left, 
right).  You could also probably do a bitwise '&' and '|'.
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