QtMoko v33 - More battery info and questions
neiljerram at gmail.com
Sat Mar 26 12:23:43 CET 2011
On 26 March 2011 09:54, Philip Rhoades <phil at pricom.com.au> wrote:
> echo bq27000-battery.0 > /sys/bus/platform/drivers/bq27000-battery/unbind
> modprobe platform_battery
> allows me to check the value of:
> and using:
> rmmod platform_battery
> echo bq27000-battery.0 > /sys/bus/platform/drivers/bq27000-battery/bind
> restores the "smart" battery function.
> I attach a graph of the resulting discharge rate of the fully charged Nokia
> BL-6C battery.
> - Even with the "dumb" battery configuration, the battery charging animated
> icon continues after USB (power) disconnection - should that happen?
> - Using the methods above, both "bind" and "unbind" files exist in the
> driver directory - shouldn't there be only one at any one time?
I would guess not, because the ".0" at the end of bq27000-battery.0
suggests that there might be multiple battery instances, of which, at
a given moment, some might be bound and others not.
> If not,
> don't the files only need to be created once instead of repeatedly each time
> the scripts/aliases are run?
Are you thinking that those echo commands create the files? I doubt
it works like that; files in /sys and /proc are special, and it's more
like echoing something into them causes some action to happen, or some
config change. Cf. "echo 1 > /proc/sys/net/ipv4/ip_forward" to enable
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