[Letux-kernel] [Gta04-owner] On camera driver

H. Nikolaus Schaller hns at goldelico.com
Tue Aug 9 22:16:09 CEST 2016


> Am 09.08.2016 um 20:12 schrieb Andrey Utkin <andrey_utkin at fastmail.com>:
> 
> On Tue, Aug 09, 2016 at 08:02:22PM +0200, H. Nikolaus Schaller wrote:
>> I think the ISP driver should create them...
> 
> I'll look at it later when I have time.
> ISP is synonymous to the camera, right? And the only driver involved is
> ov9650?

ISP is the Image Signal Processor within the OMAP3/DM3730 SoC. It
can transcode between pixel formats.

The camera is an external module connected to some OMAP3 interface.

Both have separate drivers for power control and parameter settings.

> 
>> Ah, I don't mean corruption while not syncing (Debian poweroff/reboot does a
>> clean sync) before reboot and having just a corrupt SD card. I mean corrupt
>> source code compiled into a corrupt driver. Something like *((int 0))=0; and
>> then reboot that one.
>> 
>> Anyways the result is the same.
> 
> Understood you now :)
> In such case ssh still would work, just manual reset is required for
> recovery :) And hazardous driver should not get loaded automatically on
> bootup.

Sometimes you do not know before you boot that a driver is hazardous...

BR,
Nikolaus




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