On Wed, 2014-06-04 at 22:34 +0200, Vojtech Bocek wrote: > Hello, > on Google Nexus 5, there is a Linux kernel driver used to change > charging current according to battery's temperature (too hot -> lower > the current)[1]. This driver exports as type "BMS" (battery management > system, not present in vanilla kernel) in sysfs, and because upower > considers any unknown device which doesn't have an "online" file in > sysfs a battery, it thinks the device has two batteries. This causes > the GUI to report wrong battery percentage, because it adds values > from both "batteries" (one of which is always 0) and divides them by > two. > > The point is I don't think defaulting to battery is a good idea. But I > don't know if it is okay not to - will it break stuff like UPS if > upower won't default to battery? What if we check for presence of > "capacity" file in sysfs (which that temperature driver doesn't have), > is that okay? > > Basically, I'd like to get this properly fixed, but I don't know > enough about power supply devices to post a patch, so I'd be glad for > any input on this issue.
Simply fix the driver to export a "type". That's the way you'd fix it for any of the in-kernel drivers. _______________________________________________ devkit-devel mailing list devkit-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/devkit-devel
