Adds Logo LED Toggle for Razer Blade 15 (2019) Advanced

[SMenigat]

I'm currently using a Razer Blade 15 (2019) Advanced and could not toggle my Logo LEDs via polychromatic.
I followed the steps someone else did for the Mercury model here in #1001 to add support for the 2019 Advanced model as well.

Everything seems to work locally so far.
When I open the popup menu from my tray icon, I can toggle the logo with On or Off under the brightness section. Works fine and as expected.

But when I open the polychromatic controller, I'm getting an error. This is the error message when opening polychromatic-controller:

There was a problem communicating with the daemon for this device.
Exception: org.freedesktop.DBus.Python.FileNotFoundError: Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/service.py", line 711, in _message_cb
    retval = candidate_method(self, *args, **keywords)
  File "/usr/lib/python3/dist-packages/openrazer_daemon/dbus_services/dbus_methods/deathadder_chroma.py", line 70, in get_logo_active
    with open(driver_path, 'r') as driver_file:
FileNotFoundError: [Errno 2] No such file or directory: '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-8/1-8:1.2/0003:1532:023A.0004/logo_led_state'

This is how it looks like in the UI then:

Is there anything I would need to change to fix this? I'm sorry, I did not have the time to read through the whole codebase 🤦‍♂️

[z3ntu]

Have you actually installed the modified kernel module? The error seems to indicate that you haven't

[z3ntu]

@SMenigat bump

[SMenigat]

Hi @z3ntu, sorry for the late reply.
I followed the steps described in the Wiki to build & install:

git clone https://github.com/openrazer/openrazer -b TARGET_BRANCH
cd openrazer
sudo apt install debhelper dh-python linux-headers-generic python3-setuptools lsb-release dkms # build dependencies
./scripts/build_debs.sh
sudo dpkg -i ./dist/*.deb

Cant tell if this in fact updates the kernel driver or not. Could you outline how to do that correctly that I'm able to replicate and verify?

I'm sorry, since this is completely new territory for me, I spent some time in trying to figure out how to install the kernel module but did not have success in finding the projects documentation on it.

[z3ntu]

@SMenigat For just the kernel module you can try just running make driver in the root of the repository and then do sudo rmmod razerkbd; sudo insmod ./driver/razerkbd.ko (note, that this might make your keyboard stop working, keep a spare one handy - or reboot the computer if it didn't work) to load the built module.
But otherwise, install the new debs (dkms should rebuild the modules) and then reboot (or do rmmod & modprobe).

If you want to make sure you really have the new modules loaded you can edit driver/razercommon.h:#define DRIVER_VERSION "2.9.0" and this string will be visible with e.g. cat /sys/bus/hid/drivers/razer*/0*/version

[z3ntu]

bump?