Messages in this thread | | | Subject | Re: Nokia N900 sound driver and ECI GPIOs | From | Peter Ujfalusi <> | Date | Mon, 2 Jan 2017 14:53:44 +0200 |
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On 01/02/2017 10:51 AM, Pali Rohár wrote: > On Monday 02 January 2017 10:34:34 Peter Ujfalusi wrote: >> On 01/02/2017 12:36 AM, Pavel Machek wrote: >>> Are there multi-button headsets compatible with N900? >> >> Not sure if n900 is capable of handling ECI communication, n9 was. In n9 >> the PMIC/Audio chip had an ECI core integrated afaik > > In N9 it is handled by twl5030 chip? Is there documentation for that > ECI/ACI part? N900 has twl4030 so we need some chip documentation for > adding support for N900...
n9 has twl5031 and the documentation is not public. But the kernel source from Nokia have the driver under drivers/mfd/twl5031-aci.c It is using the ECI stack to report the changes. twl4030 and twl5030 does not have support for ECI, only twl5031.
-- Péter
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