[maemo-users] Critical and others problems with hostmode

From: Pali Rohár pali.rohar at gmail.com
Date: Thu Mar 29 12:38:54 EEST 2012
On Thursday 29 March 2012 09:31:34 James Brown wrote:
> On 29.03.2012 08:18, Pali Rohár wrote:
> > On Thursday 29 March 2012 07:17:49 James Brown wrote:
> >> Device - N900
> >> OS - Maemo 5
> >> V. 21.2011.38-1 (CSSU)
> >> kernel-power 1:2.6.28-10power50
> >> hostmode-gui 0.3
> >> 
> >> With that "hostmode-gui" (h-e-n) I can easily initialize
> >> USB-device but it don't want to mount on my FS with that
> >> gui.
> >> So, I need to mount it (and umount) mannualy.
> >> Today I found a critical problem with using h-e-n. I did not
> >> use it from the last summer and I don't remember what of
> >> version of "kernel-power" I used  that time (of course. not
> >> v.50 as now :) ) and whether I used CSSU or not but I had no
> >> that problem at that time. (But at that time it needs for me
> >> to start bme mannualy after closing h-e-n windows becouse it
> >> didn't start automatically and at one time I even had
> >> problems
> >> with (re)booting my device).
> >> Now, since today, when I close the "h-e-n" gui, my device
> >> suddenly is shutting down and I need to boot it for working
> >> with it. How can I resolve the above-mentioned issues?
> > 
> > Hi,
> > 
> > shutdown after closing h-e-n GUI can be caused by starting
> > BME
> > when bq27x00_battery driver is loaded. BME and
> > bq27x00_battery
> > cannot be loaded at same time. So make sure that
> > bq27x00_battery is blacklisted in /etc/modprobe.d/* and also
> > is NOT in list /etc/modules
> Thanks. Yes, I have the bq27x00_battery driver is loaded:
> lsmod | grep  bq27x00_battery
> bq27x00_battery         6480  0
> power_supply            6916  1 bq27x00_battery
> I enabled it for purposes getting temperature as it discribed
> in the page "http://wiki.maemo.org/Overclocking"
> So, if I want use h-e-n I need to disable it?

You cannot run BME and bq27x00_battery together. So you can load 
bq driver when BME is stopped and before starting BME driver must 
be unloaded.

So normal usage is: stop BME, load bq driver.... then remove bq 
driver and start BME.

h-e-n gui is stopping BME, so when h-e-n is open you can load bq 
driver, but do not forget to unload it before closing h-e-n.

> > automounting FS in usb hostmode (without pressing mount
> > button or mounting via terminal) will work if you update
> > kernel-power to v50 and ke-recv to last version. Last
> > version of ke-recv will be updated with next CSSU update. So
> > wait for next CSSU and automouting will work.
> Thanks for your answer.
> But I was not strictly correct, I cannot mount it not only
> automatically but also using mount-button in h-e-x. I can
> mount only via terminal command.

If you can mount it via terminal, automounting with new version 
of ke-recv will work. Wait for next CSSU. If it will not work 
with next CSSU + kp50 write me then.

Pali Rohár
pali.rohar at gmail.com
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