Hello,
I would like to ask what is the effect of wiping frame buffer (dd
if=/dev/zero of=/dev/fb0) ?
I have some issue with framebuffer timing on LCD 240x320.
I could not find a timing with width=240, height=320 which result in
stable picture, but
the following timing gave me stable ppicture with
On Fri, Dec 4, 2015 at 5:12 PM, Random Guy
wrote:
> Ok, I did some research and all drivers that I've found that map memory
> to userspace do it with caching disabled.
correction: 'that map device memory to userspace'.
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On Thu, Dec 3, 2015 at 1:29 PM, Random Guy
wrote:
> I have a device with a piece of RAM. That memory is accessible to CPU.
> I write a driver for that device and it maps device memory directly to
> userspace processes. This mapping is cacheable. So far so good.
Ok, I did some research and all dri
Hi syed,
thanks for your response.
On Fri, Dec 4, 2015 at 9:16 AM, sk.syed2 wrote:
>> I have a device with a piece of RAM. That memory is accessible to CPU.
>> I write a driver for that device and it maps device memory directly to
>> userspace processes. This mapping is cacheable. So far so good
On Thu, Dec 3, 2015 at 8:14 PM, Matwey V. Kornilov
wrote:
> Hello,
>
> I have the following stack trace:
>
> [ 1351.381696] a.out S c0afb050 0 1676 1658 0x
> [ 1351.387048] [] (__schedule) from []
> (schedule+0x58/0xcc)
> [ 1351.392436] [] (schedule) from []
> (tty_port_bl
