Pro X wireless maybe has slightly different protocol? "Out of bounds" errors?

[thoraxe]

I'm not really sure how any of this works, so forgive my newb issue reports here.

I'm trying to use the Lua script to introspect the communications between the host and the device. The packets going back and forth never seem to do a "get_sidetone_volume" or a "get_battery_status" or "get_poweroff_timeout", but the G Hub definitely sees, for example, the battery status.

I am seeing some out-of-bounds Lua errors. Here's an example:

16	10.690362	3.13.0	host	USBHID	28	SET_REPORT Response


0000   1c 00 80 32 91 7b 8f a3 ff ff 00 00 00 00 08 00   ...2.{..........
0010   01 03 00 0d 00 00 02 00 00 00 00 03               ............

I'm not really sure what should be in here.

There is a ton of "get_feature" request/response, some of the EQ stuff, some button stuff, but never any "get_battery" or a few of the others.

3.13.3 is where all the get_feature communication is.

I see all the "out of bounds" errors on data coming back from the device on 3.13.0

I also see the device sending some HID data on 3.13.3. For example:

HID Data: 0120000000

The sequence of events seems to be a get feature from host to 3.13.0, followed by an out of bounds Lua processing error from 3.13.0 to host, and then followed by either pure HID data, or a get_feature response.

I'd love to dig in and get more of this working, but, honestly, it's in relation to https://github.com/Sapd/HeadsetControl to a certain degree.

[ashkitten]

can you provide wireshark capture files for what you're seeing?

[thoraxe]

https://drive.google.com/file/d/11r9voCayKynHl0V2QVMm9RHaIVcexw_p/view?usp=sharing

This is a capture of:

• starting with dongle attached to PC, headset off
• turning on headset, waiting for a moment
• turning off headset

[ashkitten]

looking at the code for my hid++ wireshark dissector, it seems like i've hardcoded feature indexes for the g933. other headsets might map these differently, and software is meant to use the root feature's get_feature function to map feature ids to device specific indexes. for the lua dissector to do it properly, it would have to observe these get_feature requests and keep some internal state as to what the indexes refer to.

have you tried g933-utils itself with your headset? it may just work, since it does not hardcode those indexes.

[thoraxe]

the utils doesn't even report that it is finding a device:

[thoraxe:~/Downloads/g933-utils] master ± sudo cp 90-logitech.rules /etc/udev/rules.d/
[thoraxe:~/Downloads/g933-utils] master ± sudo udevadm control --reload-rules
[thoraxe:~/Downloads/g933-utils] master ± sudo udevadm trigger
[thoraxe:~/Downloads/g933-utils] master ± sudo ./target/release/g933-utils list
[thoraxe:~/Downloads/g933-utils] master ± 

just for giggles:

[thoraxe:~/Downloads/g933-utils] master ± sudo ./target/release/g933-utils get battery
ERROR:g933_utils: No devices found
Set RUST_BACKTRACE=1 to see a backtrace

But that's probably because the device (Pro X) isn't "supported" per:
https://github.com/ashkitten/g933-utils/blob/master/libg933/src/lib.rs#L493-L502

So, I'll add it and rebuild...

sudo ./target/release/g933-utils list
[sudo] password for thoraxe: 
Device 1-4: PRO X Wireless Gaming Headset

Progress!

sudo ./target/release/g933-utils get battery
ERROR:g933_utils: No charge/discharge curve defined for device
Set RUST_BACKTRACE=1 to see a backtrace

Oof.

So, I'm guessing that battery doesn't live at 1f20 for the Pro X?
https://github.com/ashkitten/g933-utils/blob/master/libg933/src/lib.rs#L44

[ashkitten]

you will need to pull the voltage curve data from the logitech gaming software. from what i remember, that's csv formatted data contained in an xml file. extract the csv data from the xml, and put it in separate files under libg933/src/maps/[productId]

[ashkitten]

er, i found this set of comments from when g533 support was added: #6 (comment)

if you manage to figure it out, please document the process so others can reference it in the future.

[thoraxe]

Just putting this here for reference:
https://gist.github.com/thoraxe/2d9ce589aa4a6f32d43dca595243660c

Will dissect

FYI the file was located in C:\ProgramData\LGHUB\depots\73248\pro_headset although there is another folder path including 72671 that also has the file. The files are identical.

[ashkitten]

did you manage to get it working?