Re: PXA255 Suspend/Resume
From: turnsek (turnsek_at_discussions.microsoft.com)
Date: 02/28/05
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Date: Sun, 27 Feb 2005 23:51:01 -0800
Hi!
Thanks for the reply. My system is not completelly locked, but it has some
problems, judging on poor performance of simple LED application. I have
checked my driver and I haven't found any power functions in it, but I think
you are write and NDIS should rebind the driver after resume. I will look
more closely into the suspend/resume logic and any experiences would be
appreciated.
Thanks,
Jernej Turnsek
"Mo" wrote:
> i am not familiar with the PXA255,
> but i believe that ur network driver (for CS8900) should implement
> IOCTL calls
> (such as IOCTL_POWER_CAPABILITIES, IOCTL_POWER_SET,.. etc)
> and power management functions such as powerUp() and powerDown() so
> it know what to do when the system is suspending /resuimg.
> for suspending, i think u need to place the ethernet chip in some low
> power mode.
> upon resuming, i think u need to re-initialize the chip and certain
> registers and rebind to NDIS, etc.....
>
> is ur system locking up after resume or just the ethernet stops
> working?
>
> i am new to wince/device drivers (8 months so far) so Guru's might have
> better answer for u
> hope that helps
>
>
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