Hi, On Thu, May 15, 2014 at 09:50:45AM +0200, Rolf Eike Beer wrote: > Heikki Krogerus wrote: > > > the AzureWave AW-AH691A module looks similar to me, it is identified as > > > AAM4752. However if I add it to that list I don't get anything, even with > > > the brcmfmac driver loaded. Is there any magic missing? > > > > Which machine are you using? Could you attach the output of acpidump? > > this is an Aava Inari 8 tablet (pre-release hardware). To avoid spamming the > list with the same DSDT twice, please have a look at my reply in the thread > "Re: [Patch V2 0/9] I2C ACPI operation region handler support". Okay. So the AAM4752 is a GPS module attached to the UART. You need to add the HID to the list in drivers/acpi/acpi_platform.c and also to the driver, which is net/rfkill/rfkill-gpio.c in this case. But that will only give you a rfkill switch that allows you to control the enable signal of the chip via rfkill framework. The actual communication with the chip happens from userspace via /dev/ttySx (/dev/ttyS2 on your board), just like with any other peripheral attached to UARTs. So no drivers needed for that. Br, -- heikki -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html