Moto G6 Plus fingerprint scanner not recognized.

[imprezzion]

ROM thinks the fingerprint is a rear mounted scanner but it is a front mounted thumb scanner. It does not respond.

[rakeeboy]

Here is the logs

https://drive.google.com/file/d/1vj1cjhC8rilnv9VfE9uO9rSoGIABRAgF/view?usp=drivesdk

[phhusson]

Can you test on my latest AOSP v21?
The ROM you're using (is it one of mine? which one?) has a broken fingerprint. I'm amazed you can boot

[rakeeboy]

Yes, I'm using the aosp v21, it can boot, everything is ok,just the fingerprint not work. Pierre-Hugues HUSSON <notifications@github.com> 于 2018年7月2日周一 下午5:18写道：

…

Can you test on my latest AOSP v21? The ROM you're using (is it one of mine? which one?) has a broken fingerprint. I'm amazed you can boot — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#68 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/Am4ZUUdGs_dsWKyUucyDKaZgX30g0Cttks5uCoAOgaJpZM4UYLoJ> .

[rakeeboy]

Any news?

[phhusson]

So the issue has been debugged.
The issue is that Motorla uses group names that doesn't exist in AOSP, which leads to several things being not accessible from fingerprint HAL:

#Stock init does chown system:tmot_cmd
chown system:9015  /sys/devices/soc/soc:fpc_fpc1020/irq
chown system:9015  /sys/devices/soc/soc:fpc_fpc1020/irq_cnt
#Stock init uses group called "fingerp"
chown system:9015 /data/.fps