On Tue, 2014-04-22 at 14:24 +0800, Lan Tianyu wrote: > ACPI 5.0 spec(5.5.2.4.5) defines GenericSerialBus(i2c, spi, uart) operation > region. It allows ACPI aml code able to access such kind of devices to > implement some ACPI standard method. > > On the Asus T100TA, Bios use GenericSerialBus operation region to access > i2c device to get battery info. So battery function depends on the I2C > operation region support. Here is the bug link. > https://bugzilla.kernel.org/show_bug.cgi?id=69011 > > This patchset is to add I2C ACPI operation region handler support. For what it's worth, I've tested this patchset with the exception of patch 9/9 - which I leave out because it would require annoying fiddling with my kernel builds - and it gives apparently-accurate battery/AC information on my Venue 8 Pro. It doesn't *obviously* cause any other problems, though there are a few other issues I'm dealing with ATM. If any of them turn out to be related to this patch set, I'll send a follow-up. -- Adam Williamson Fedora QA Community Monkey IRC: adamw | Twitter: AdamW_Fedora | XMPP: adamw AT happyassassin . net http://www.happyassassin.net -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html