* When copy, which function the operation system calls
@ 2004-01-17 8:32 Ai Chengshi
2004-01-20 0:23 ` James Simmons
0 siblings, 1 reply; 3+ messages in thread
From: Ai Chengshi @ 2004-01-17 8:32 UTC (permalink / raw)
To: linux-fbdev-devel
Hi,
When I typed cp test.bin /dev/fbdir/0, which function does the Linux call? And if I want to write the content in the buffer to LCD controller GRAM, where should I add this function?
Yours Sincerely,
Ai Chengshi
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: When copy, which function the operation system calls
2004-01-17 8:32 When copy, which function the operation system calls Ai Chengshi
@ 2004-01-20 0:23 ` James Simmons
2004-01-20 3:51 ` Ai Chengshi
0 siblings, 1 reply; 3+ messages in thread
From: James Simmons @ 2004-01-20 0:23 UTC (permalink / raw)
To: Ai Chengshi; +Cc: linux-fbdev-devel
> Hi,
>
> When I typed cp test.bin /dev/fbdir/0, which function does the Linux call?
fb_write in fbmem.c.
> And if I want to write the content in the buffer to LCD controller GRAM,
> where should I add this function?
Which kernel, v2.4 or v2.6? The api is different in each case.
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: When copy, which function the operation system calls
2004-01-20 0:23 ` James Simmons
@ 2004-01-20 3:51 ` Ai Chengshi
0 siblings, 0 replies; 3+ messages in thread
From: Ai Chengshi @ 2004-01-20 3:51 UTC (permalink / raw)
To: James Simmons; +Cc: linux-fbdev-devel
Dear James Simmons,
I have read the Linux framebuffer drivers-HOWTO written by you on the web. I
found that the drivers you mentioned were most developed on Linux V2.6.
However, the kernel I used was V2.4. Then how should I do?
Thanks for your help.
Yours sincerely,
Ai Chengshi
----- Original Message -----
From: "James Simmons" <jsimmons@infradead.org>
To: "Ai Chengshi" <rosemaryai@vip.sina.com>
Cc: <linux-fbdev-devel@lists.sourceforge.net>
Sent: Tuesday, January 20, 2004 08:23
Subject: Re: [Linux-fbdev-devel] When copy, which function the operation
system calls
>
> > Hi,
> >
> > When I typed cp test.bin /dev/fbdir/0, which function does the Linux
call?
>
> fb_write in fbmem.c.
>
> > And if I want to write the content in the buffer to LCD controller GRAM,
> > where should I add this function?
>
> Which kernel, v2.4 or v2.6? The api is different in each case.
>
>
>
>
>
-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn
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