gta02a5 prototype #30 brief review
Michael 'Mickey' Lauer
mickey at openmoko.org
Wed Feb 27 13:08:28 CET 2008
On Wednesday 27 February 2008 06:12:58 Andy Green wrote:
> > * BT and GPS power nodes are only in a very deeply embedded i2c subdir,
> > whereas the other device nodes are in /sys/devices/.
> We can symlink them if you think it is good.
Yes, that makes it a bit more consistent, so please do that.
> > * after enabling the BT power node, no bluetooth model is found on USB.
> You must additionally echo "0" > bah-de-blah/reset for detection
Excellent. That does it. I can scan and inquire fine here.
> > * Wifi module works ok, but has some quirks. First, reception was not
> > that good, second, there are some driver problems with the wireless
> > extensions not being fully supported. you can't set the channel in ad-hoc
> > mode, link quality has bogus values (x/y, x >= y), when you scan and
> > there is nothing found, iwlist eth0 scan hangs with:
> > eth0 Failed to read scan data : Resource temporarily unavailable
> > kernel says:
> > AR6000 scan complete: 0
> > ar6000_ioctl_giwscan(): data length 0
> > [repeated 20 times]
> You must have the "89" firmware on your module for good operation.
Which I have.
> > * NOT tested yet:
> > * accellerometer
> > * suspend/resume from various sources
> > * RTC
> Testing RTC will be valuable because I never looked at it and the time
> is often inconsistent.
Ok, I will do some tests today/tomorrow. Is suspend/resume expected to work
> > Further questions:
> > * What's the plan regarding support for non-coloumb-counter batteries?
> > apm did not show any sane values. Interestingly after some time, I got a
> > BATTFULL message from PCF -- is this correct?
> They should work for charging but we don't ship with them so no
> telemetry. The telemetry from the smart batteries is pretty good.
I see. However we should support at least the same level of telemetry with the
dumb batteries that we had in GTA01.
> BATTFULL is fine it is an event from the standalone charger state
> machine that it sees it should stop charging because the battery is
> acting done. It keeps topping the thing up at (long) intervals and will
> repeat it ongoing, but it is accurate.
Excellent, we could not sense that in GTA01.
> > * battemp and friends do not contain information yet.
> Raster was in here yesterday asking about that, he is on it.
Ok, cool. Going standard power class is definitely a good way. I want to see
the embedded apm emulation dying a rapid death.
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