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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Maemo 5 / Fremantle (https://talk.maemo.org/forumdisplay.php?f=40)
-   -   [Announce] kernel-power stable v50 in Extras (https://talk.maemo.org/showthread.php?t=83118)

pali 2012-07-10 08:11
Re: [Announce] kernel-power stable v50 in Extras
 
Quote:
Originally Posted by reinob (Post 1235040)
Can you explain this one a bit?

Meaning: does in-kernel battery charging actually work? (will gladly test it, but need more info :)
Yes, I charged battery in my n900 more times without problem with this my in-kernel driver.

Quote:
Originally Posted by reinob (Post 1235040)
Is isp1704 also in there?
If you mean upstream isp1704_charger kernel driver, no it is not included. But isp1704_charger driver was created from our patched maemo 2.6.28 musb code. So isp1704_charger is included in musb kernel driver (which do needed wallcharger detection).

Quote:
Originally Posted by reinob (Post 1235040)
I read in one LKML thread (where you and Felipe discussed the two alternative drivers) that one would have to stop mce, insmod the module and echo auto/none/host/dedicated to /sys/class/power_supply/bq24150-0/mode.

Assuming I try the above, will my N900 become a bratwurst? :) (or a bratbrick :)

How do I stop charging? is this automatically detected? or do I have to echo something to /mode and unplug the charger, etc.?
Now in kp51 autodetection of charger type working, so manual mode is not needed. But BME must be stopped and then bq2415x_charger driver can be loaded.

Quote:
Originally Posted by reinob (Post 1235040)
Sorry lots of questions. If this works it's going to be BIG (for me at least) but I need to know (without time for reading the module nor time to actually check if the module is OK :) if this is more-or-less-safe to try.

Cheers and thanks a million!
I written some info about charging & hostmode with bq2415x_charger driver for kernel-power on: http://atrey.karlin.mff.cuni.cz/~pal...o/bq2415x.html

mauron85 2012-07-10 08:24
Re: [Announce] kernel-power stable v50 in Extras
 
Pali, I've read your info about bq2415x_charger driver. I've got only one question. What is boost mode?

pali 2012-07-10 08:29
Re: [Announce] kernel-power stable v50 in Extras
 
Quote:
Originally Posted by mauron85 (Post 1235063)
Pali, I've read your info about bq2415x_charger driver. I've got only one question. What is boost mode?
power for your usb device in usb host mode if you do not have external power supply.

pali 2012-07-10 09:37
Re: [Announce] kernel-power stable v50 in Extras
 
New update for kernel-power-modules package:

Now I added patch for bq27x00_battery kernel driver which export values of all chip registers to one text sysfs file /sys/class/power_supply/bq27200-0/registers in format reg=val separated by newline (both reg and val are in hexadecimal). Driver is still blacklisted due to BME.

joerg_rw 2012-07-10 11:16
Re: [Announce] kernel-power stable v50 in Extras
 
Quote:
Originally Posted by pali (Post 1235118)
New update for kernel-power-modules package:

Now I added patch for bq27x00_battery kernel driver which export values of all chip registers to one text sysfs file /sys/class/power_supply/bq27200-0/registers in format reg=val separated by newline (both reg and val are in hexadecimal). Driver is still blacklisted due to BME.
Feels like my birthday :-D And I got all I ever asked for.
Thanks Pali!

/j

joerg_rw 2012-07-10 11:18
Re: [Announce] kernel-power stable v50 in Extras
 
Quote:
Originally Posted by mauron85 (Post 1235063)
Pali, I've read your info about bq2415x_charger driver. I've got only one question. What is boost mode?
N900 provides up to 200mA@5V on USB receptacle +VBUS_5V. Needed for USB hostmode/H-E-N

/j

Mohammed Muid 2012-07-10 11:28
Re: [Announce] kernel-power stable v50 in Extras
 
when will it hit the repos?

sifo 2012-07-10 20:43
Re: [Announce] kernel-power stable v50 in Extras
 
Quote:
Originally Posted by Mohammed Muid (Post 1235199)
when will it hit the repos?
http://talk.maemo.org/showpost.php?p...&postcount=460

im not sure you want it if you did not read the posts before :)

Estel 2012-07-11 00:52
Re: [Announce] kernel-power stable v50 in Extras
 
Quote:
Originally Posted by joerg_rw (Post 1235044)
no time to comment on all the other questions, just one thing: charging on N900 is immanently safe due to hardware design. No way to fry your device.

/j
AFAIK, ShadowJK mentioned once a possibility of overheating chip, when charging with more than 950 mA (he tried faster charging, using charge.sh and temperature change was very troubling - I asked about it, when I considered faster charging due to 2-cell battery and 2A power source).

It's possible that I've misunderstood something - so don't get aggressive, like in last answer to my post (despite my tremendous amount of marking, that it's personal view on things, personal opinion, may be not accurate, etc) - but are you sure about that one, i.e complete bulletproofness of charging route design?

/Estel

ersanpermana 2012-07-11 03:20
Re: [Announce] kernel-power stable v50 in Extras
 
Hy all,what you've tried mobilehotspot and qtmobilehotspot connection? Is there a problem? Why do I always fail to connect to other devices?
Could initially but now it always failed :(


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