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Re: [ts-7000] Re: Frame Buffer Programming ?

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Subject: Re: [ts-7000] Re: Frame Buffer Programming ?
From: "Eddie Dawydiuk" <>
Date: Tue, 8 Aug 2006 11:17:32 -0700 (MST)
Hello,

> Thanks -  ts7kvfb.c which tar file is this in on the ftp server & is
> there a howto compile / replace the active one?

ts7kvfb.c is the frame buffer driver for the TS-7KV, it is included
in the kernel source code in drivers/video. IIRC the ts7kvfb.c file
is compiled as a module by default, you can run make menuconfig to
verify this. You would compile it as you would any other module
in the kernel... (e.g. make modules).

> + which source do i look for any other /proc/sys/dev/fb/ variables

This is an interface provided by the frame buffer driver, once you
have the module loaded you should see the file 
/proc/sys/dev/fb/cursor_blink_rate exists. You can cat this file out
to view the current cursor blink rate value, or echo a new value to 
this file to change the blink rate value. A negative value will disable
the cursor.

//Eddie

> --- In  "Eddie Dawydiuk" <> wrote:
>>
>> Hello,
>>
>>> Thanks, yea disabled it - can u offer any ts7200 help regarding
>>> switching video pages and stopping the monitor blanking ?
>>
>> I'm not sure if there is a way to tell Linux not to use VESA suspend
>> and powerdown modes. You might want to look into this first...
>> Otherwise you can modify the driver to ignore Linux when it tells
> the
>> framebuffer to suspend and powerdown.
>>
>> e.g.
>>
>> /*
>>   *  Blank the screen if blank_mode != 0, else unblank. If blank ==
> NULL
>>   *  then the caller blanks by setting the CLUT (Color Look Up
> Table) to all
>>   *  black. Return 0 if blanking succeeded, != 0 if un-/blanking
> failed due
>>   *  to e.g. a video mode which doesn't support it. Implements VESA
> suspend
>>   *  and powerdown modes on hardware that supports disabling
> hsync/vsync:
>>   *    blank_mode == 2: suspend vsync
>>   *    blank_mode == 3: suspend hsync
>>   *    blank_mode == 4: powerdown
>>   */
>> static int ts7kv_blank(int blank_mode, struct fb_info_gen *info)
>>
>>
>> Above is a snip from ts7kvfb.c.
>>
>> //Eddie
>>
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> Yahoo! Groups Links
>
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