Not so easy... :) Drivers built for a given kernel may not be
compatible with a different kernel build due to ABI breakages.
As a result, in most of the cases (is ABI changed), old drivers must
be substituted with new ones to work.

Cheers,
Alessio

On Mon, Jun 3, 2019 at 2:50 PM Michael Burrows
<[email protected]> wrote:
>
> Thank you for helping me out a while back Alessio! I am now about to build 
> the kernel again. Is there a way to implement the touchdriver(and maybe other 
> drivers missing aswell) before building? To avoid having to do the steps you 
> have provided me with? I know there are drivers I have to download before 
> building AOSP. But I cannot seem to find any information about downloading 
> drivers for the kernel.
>
> Thank you once again
>
>
> tirsdag 2. april 2019 23.23.04 UTC+2 skrev Alessio Balsini følgende:
>>
>> > Thank you!
>> > This seemed to work :)
>> > Had to run the adb disable-verity command before remounting.
>>
>> That's strange, `adb remount` with -R should also disable verity.
>> Anyway, cool that it worked.
>>
>> > I tried enabling dm-verity after pushing the .ko modules
>> >
>> > It has resulted in "Your device is corrupt. It can't be trusted and may 
>> > not work properly.
>> > Visit this link on another device: g.co/ABH"
>> >
>> > Pressing the power button to continue takes me into the bootloader for a 
>> > few seconds, I see the Google logo for about 1sec. And Im back into the 
>> > Fastboot Mode. I guess I can flash Pixel factory image. But how do I get 
>> > pass the dm-verity check?
>>
>> That is an expected behavior, enforced for security reasons.
>> Unfortunately, being able to pass the verity checks would require to
>> update vendor.img, as well as the keys for all the verity checks, that
>> is not possible...
>>
>> Regards,
>> Alessio
>
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