From: mulyadi.santosa@gmail.com (Mulyadi Santosa)
To: kernelnewbies@lists.kernelnewbies.org
Subject: request_mem_region
Date: Tue, 21 Jun 2011 12:22:12 +0700 [thread overview]
Message-ID: <BANLkTimS6-=k9Lxn6E2S0FEiR_jHJUrv2A@mail.gmail.com> (raw)
In-Reply-To: <BANLkTimOEovCf3CZPk_+WE1Uj1rQL9fu_Q@mail.gmail.com>
On 20/06/2011, Daniel Redway <daniel.redway85@gmail.com> wrote:
> Hello
>
> As I understand ioremap() maps and returns virtual address
> for a given physical(bus) address associated with my PCI card.
> That is cool and clear.
>
>
> What is the purpose of request_mem_region()?
checking http://lxr.linux.no/linux+v2.6.39/kernel/resource.c#L732, I
think that function generally says "alright,I wanna reserve this
memory region, so no one may touch it....until I mark it as free
again"
--
regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
next prev parent reply other threads:[~2011-06-21 5:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-20 7:48 request_mem_region Daniel Redway
2011-06-21 5:22 ` Mulyadi Santosa [this message]
2011-06-21 6:54 ` request_mem_region Daniel Redway
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