* About framebuffer driver
@ 2004-02-01 1:38 rosemaryai
2004-02-02 18:00 ` James Simmons
0 siblings, 1 reply; 5+ messages in thread
From: rosemaryai @ 2004-02-01 1:38 UTC (permalink / raw)
To: linux-fbdev-devel
Hi,
The kernel I am using is 2.4. When I copy test.bin to /dev/fbdir/0, which function does the Linux call?
Yours Sincerely,
Ai Chengshi
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: About framebuffer driver
2004-02-01 1:38 About framebuffer driver rosemaryai
@ 2004-02-02 18:00 ` James Simmons
2004-02-03 1:02 ` Ai Chengshi
2004-02-03 1:12 ` Ai Chengshi
0 siblings, 2 replies; 5+ messages in thread
From: James Simmons @ 2004-02-02 18:00 UTC (permalink / raw)
To: rosemaryai; +Cc: linux-fbdev-devel
> The kernel I am using is 2.4. When I copy test.bin to /dev/fbdir/0, which function does the Linux call?
fb_write.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: About framebuffer driver
2004-02-02 18:00 ` James Simmons
@ 2004-02-03 1:02 ` Ai Chengshi
2004-02-03 1:12 ` Ai Chengshi
1 sibling, 0 replies; 5+ messages in thread
From: Ai Chengshi @ 2004-02-03 1:02 UTC (permalink / raw)
To: James Simmons; +Cc: linux-fbdev-devel
Then, which function call fib_write? I found that this function was called in many times.
Sincerely yours,
Ai Chengshi
----- Original Message -----
From: "James Simmons" <jsimmons@infradead.org>
To: <rosemaryai@vip.sina.com>
Cc: <linux-fbdev-devel@lists.sourceforge.net>
Sent: Tuesday, February 03, 2004 2:00 AM
Subject: Re: [Linux-fbdev-devel] About framebuffer driver
>
> > The kernel I am using is 2.4. When I copy test.bin to /dev/fbdir/0, which function does the Linux call?
>
> fb_write.
>
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: About framebuffer driver
2004-02-02 18:00 ` James Simmons
2004-02-03 1:02 ` Ai Chengshi
@ 2004-02-03 1:12 ` Ai Chengshi
2004-02-04 23:52 ` Antonino A. Daplas
1 sibling, 1 reply; 5+ messages in thread
From: Ai Chengshi @ 2004-02-03 1:12 UTC (permalink / raw)
To: James Simmons; +Cc: linux-fbdev-devel
If I want to transfer data in frame buffer to LCD GRAM, where should I add this function to?
Sincerely,
Ai Chengshi
----- Original Message -----
From: "James Simmons" <jsimmons@infradead.org>
To: <rosemaryai@vip.sina.com>
Cc: <linux-fbdev-devel@lists.sourceforge.net>
Sent: Tuesday, February 03, 2004 2:00 AM
Subject: Re: [Linux-fbdev-devel] About framebuffer driver
>
> > The kernel I am using is 2.4. When I copy test.bin to /dev/fbdir/0, which function does the Linux call?
>
> fb_write.
>
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: About framebuffer driver
2004-02-03 1:12 ` Ai Chengshi
@ 2004-02-04 23:52 ` Antonino A. Daplas
0 siblings, 0 replies; 5+ messages in thread
From: Antonino A. Daplas @ 2004-02-04 23:52 UTC (permalink / raw)
To: Ai Chengshi; +Cc: James Simmons, Linux Fbdev development list
On Tue, 2004-02-03 at 09:12, Ai Chengshi wrote:
> If I want to transfer data in frame buffer to LCD GRAM, where should I add this function to?
>
fb_write() is called by the virtual filesystem itself. You do not call
this directly.
To transfer contents to/from framebuffer, you might need to make code
that will periodically do a memcopy (or similar) that is triggered
perhaps by a timer or during vsync/vblank.
Tony
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end of thread, other threads:[~2004-02-04 23:55 UTC | newest]
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2004-02-01 1:38 About framebuffer driver rosemaryai
2004-02-02 18:00 ` James Simmons
2004-02-03 1:02 ` Ai Chengshi
2004-02-03 1:12 ` Ai Chengshi
2004-02-04 23:52 ` Antonino A. Daplas
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