From: Denis Oliver Kropp <dok@directfb.org>
To: kaka <share.kt@gmail.com>
Cc: linux-mips@linux-mips.org, uclinux-dev@uclinux.org,
celinux-dev@tree.celinuxforum.org,
linux-fbdev-users@lists.sourceforge.net,
directfb-users@directfb.org, directfb-dev@directfb.org
Subject: Re: [directfb-dev] Usage of mmap command
Date: Tue, 20 Nov 2007 09:29:35 +0100 [thread overview]
Message-ID: <47429AEF.3010403@directfb.org> (raw)
In-Reply-To: <eea8a9c90711192239q6009cbb8y76790fa73bc4a5b7@mail.gmail.com>
kaka wrote:
> Hi All,
>
> void *mmap(void *start, size_t length, int prot, int flags, int
> fd, off_t offset);
>
> I am providing 16,00,000 as length parameter in mmap command.
> It is giving me error as Can't mmap region. on the other hand when i am
> providing 9,00,000 as length parameter in mmap command.
> It is successful.
> This mmap command is being issued from User space.
>
> On the other hand in the framebuffer driver in the kernel spce i have
> specified the length of mmio in the ioremap as 16,00,000.
The ioremap() is independent of the values propagated to user space
and fbmem.c via fix.mmio_start and fix.mmio_len, please check these.
--
Best regards,
Denis Oliver Kropp
.------------------------------------------.
| DirectFB - Hardware accelerated graphics |
| http://www.directfb.org/ |
"------------------------------------------"
next prev parent reply other threads:[~2007-11-20 8:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-20 6:39 Usage of mmap command kaka
2007-11-20 8:29 ` Denis Oliver Kropp [this message]
2007-11-20 9:40 ` kaka
2007-11-20 10:42 ` Denis Oliver Kropp
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=47429AEF.3010403@directfb.org \
--to=dok@directfb.org \
--cc=celinux-dev@tree.celinuxforum.org \
--cc=directfb-dev@directfb.org \
--cc=directfb-users@directfb.org \
--cc=linux-fbdev-users@lists.sourceforge.net \
--cc=linux-mips@linux-mips.org \
--cc=share.kt@gmail.com \
--cc=uclinux-dev@uclinux.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.