On Tue, Feb 19, 2013 at 07:11:52PM +0200, Pallala, Ramakrishna wrote: > > > On Tue, Feb 19, 2013 at 03:07:57PM +0000, Pallala, Ramakrishna wrote: > > > I am trying to populate battery related information through ACPI > > > tables and do battery management through non acpi drivers. Can you > > > tell or point me on how to populate the ACPI tables in FW/BIOS and get > > > them in OS? I am new to ACPI world. > > > > You should start by reading Documentation/acpi/enumeration.txt. > > > > Also can you describe with bit more details, what you are trying to do? A > > new > > battery driver that is enumerated from ACPI namespace, perhaps? > > > > Do you have a DSDT table in hand which we could take a peek? > > Thanks Mika for the pointers. I have looked at the documentation. > > we already have i2c driver for battery monitoring but the chip needs > initialized with > characterization data. We wanted to populate/pass this data through ACPI > table to the > i2c slave driver. > > How can I do that? Can I pass characterization data through ACPI table to > the i2c slave device?
Is the characterization data available in DSDT (or SSDT) table? If yes, then you can just use the fact that ACPI_HANDLE(&i2c_client->dev) returns a valid ACPI handle for your device. You can use this handle to call some ACPI method or whaterver is needed to extract that information. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
