Feature states of lge_msm8996_4.4 in Android 11 ROMs

Since this 4.4 kernel is still early in development, many features aren't working as intended or don't work at all. This section is a way of tracking their states during development, and also serves as guidance to what needs to be looked at.

Table of features:

For features with an appended asterisk, refer to the section right below this table.

Feature	LG G5 (H1/Alice)	LG G6 (Lucye)	LG V20 (Hplus/Elsa)
Booting	Yes	Yes	Yes
Bluetooth	Works	Works	Works
Video over USBC	Works	Untested	Works
Touch	Works	Works	Works
Wi-fi	Works(2.4GHz)	Works (2.4GHz)	Works (2.4 & 5GHz)
Hotspot	Works(2.4GHz)	Works (2.4GHz)	Works (2.4 & 5GHz)
Fingerprint	Works	Works	Works
Gyroscope	Works	Works	Works
Proximity Sensor	Works	Untested	Works
Light Sensor	Works	Untested	Works
Display	Works	Works	Works
Barometer	Works	Untested	Works
Compass	Works	Works	Works
Accelerometer	Works	Works	Works
Other LGE/QTI sensors	Works	Untested	Works
GPS	Works	Untested	Works
Calls over 3G	Untested	Untested	Works
Calls over 4G	Not working*	Not working*	Not working*
Cellular data	Untested	Untested	Works
MSM8996 clock scaling	Works	Works	Works
SoC Audio drivers	Works	Works	Works
Adreno KGSL stack	Works	Works	Works
Vibration(needs selinux permissive)	Works	Works	Works
Media decoding	Works	Works	Works
Battery detection	Works	Works	Works
NFC	Untested	Untested	Works
MicroSD slot	Untested	Untested	Works
Screen Recorder	Untested	Untested	Works
USB gadget mode	Works	Works	Works
Speaker and Headphone Jack	Works	Works	Works
Quad-DAC	Unavailable(module)	Untested	Works
Wireless Charging	Unavailable	Works	Unavailable
Microphone	Works	Works	Works
FM Radio	Works	Not working	Works
USB charging	Works	Works	Works
USB OTG	Works*	Untested	Works*
Audio over HDMI	Works*	Untested	Works*
Temp sensors	Works	Works	Works
Infrared	Works*	Works*	Works*
Camera	Not working	Not working	Not working
Ethernet over USBC	Unavailable?	Unavailable?	Not working
Modules support	Not working	Unavailable	Unavailable
Waterproof property	Unavailable	Not working	Unavailable

What works, but is either finicky or has major caveats:

• USB OTG (Most of the time it works, but a few states such as PWRED_ACCESSORY aren't as feature complete as they should be)
• Audio over HDMI, which is actually played through the phone's speakers or jack for now.
• Infrared (Kernel-side too, it's been buggy for years, but some improvements were done in the suspend modes) (G5/V20)

What doesn't work

• Calls over 4G (It's not a kernel issue, but actually a result of LGE not open-sourcing their VoLTE blobs.)
• Camera (Isn't picked up by the roms, and kernel shows no signs of having issues with it)

We might be missing some of those phones' features, so this section will be updated to include them as we discover and/or fix things.

Possible steps to get the features working

• The infrared blaster currently hangs after sending a pattern, only responding again after suspending and resuming. Possible approaches are altering the IR Hal to deal with that; finding a way to force the driver to "restart" a few milliseconds after sending the pattern; or tracking the bug down to qcom's serial drivers, since IR worked on older revisions of 3.18.

• Camera isn't even picked up by the roms yet, and its logs don't differ all that much from 3.18. Doesn't appear to be a kernel issue, but the same happened with audio. Either way, we could be missing a critical commit in the kernel or a blob config in the roms.

• While not listed above, the fuel gauge's slow update on userspace could be an issue. The battery readings update too slowly, and can't keep up with the phones' power consumption on heavier loads. At least the V20 is confirmed to suffer from this.