[Gta04-owner] [PATCH 0/4] UART slave device support - version 4

Radek Polak psonek2 at seznam.cz
Thu Jan 21 12:09:23 CET 2016


On Thursday 21 of January 2016 11:19:28 H. Nikolaus Schaller wrote:

> Yes, sure it *can* be hacked differently for this single case (but raising a
> different set of problems).

Which are?

> And I don't want to require users to use initramfs if everything else works
> without. Just because of this chip (tail wakes the dog).

E.g. booting to multiple partitions never worked for my use case - this is 
solved by initramfs. I will never use stock goldelico kernel anyways, 
because it cant boot to my partition...

> This does no exclude to use initramfs for other reasons and avoids
> compatibility problems with different initramfs setups someone might 
want
> to use/develop.

I am just wondering how much energy you put into this marginal problem. 
QtMoko in early days never had problems to manage GPS power - no 
support from kernel except the GPIO was needed. It's just few lines of 
code. I dont think any other userspace will have problem to implement it - 
just explain under gta04-kernel docs under GPS section what has to be 
done.

The real problem is e.g. that my Nokia N900 eats 3mA in suspend and 
lasts 6day, while GTA04 eats 25mA and needs recharging every day. I 
personally dont care if turning GPS on/off is 10 lines of code in userspace 
or 40 lines of code in kernel.

BR

Radek
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