[Gnewsense-dev] Re: [loongson-dev] [ANNOUNCE] Add Basic Standby Support to linux-loongson-2.6.30.1

[Erwan Lerale]

Wu Zhangjin wrote:
> Hi all,
>
> Just added basic Standby Support to linux-loongson-2.6.30.1 and create a
> new tag: linux-loongson-2.6.30.1-Standby (This tag include STD, EC,
> RTL8187b wifi drivers)
>
> you can download it here:
>
> http://dev.lemote.com/cgit/rt4ls.git/snapshot/linux-loongson-2.6.30.1-Standby.tar.bz2
>
> or
>
> git://dev.lemote.com/rt4ls.git linux-loongson/2.6.30/stable
>
> have tested it with the default kernel configuration file
> arch/mips/configs/yeeloong2f_defconfig with gcc 4.4, works well. it may
> save at least 2W for you.
>
> * Usage:
>
> after compiling the kernel with the default configuration file, please
> install the kernel image file and the relative modules, and then, you
> just need to execute this command to enter into the standby mode:
>
> $ echo standby > /sys/power/state
>
> and then, resume it with a press on any button of the keyboard.
>
> Enjoy it!
>
> BTW: several new features will be added to this standby support,
> including the backlight, camera, usb, wifi operations, which will save
> about 5W for you. these new features will come about 1-3 weeks later, 
>
> Regards,
> Wu Zhangjin
>   

Hello and thanks for your cool job !

I'm testing linux-loongson-2.6.30.1-Standby. The ec stuff + rtl8187b
drivers seems to be working fine.

The problem is with standby :

xiwen ~ (n32) # echo standby > /sys/power/state
bash: echo: write error: No such device

As i'm not using your default kernel config file, do I have to add some
particular options ?

Cheers
Erwan