The old ones don't exist anymore

I'm 90% sure that an engineer at razer mistyped 16 instead of 0x16
(22) for the max descriptor and tried to fix it, or vice-versa in
newer keyboard firmware.. Anyways, let's look for both 16 and 0x16.

Signed-off-by: Pushpal Sidhu <psidhu.devel@gmail.com>

This prevents the driver to be bound to multiple interfaces which is
both unneccessary and is not supposed to happen.

Before this fix there sometimes in the last iteration of the while loop
elapsed was grater than fade_time and that resulted in a tiny full
brightness blink at the end of the effect (when the key should be almost
turned off).

Fixes #1337

This is required for several new devices.

Fixes #1379

Signed-off-by: Marcus Weinhold - umwerk systems GmbH <marcus.weinhold@umwerk-systems.com>

Includes DeathAdder 2013. Fixes #1350.

The daemon would throw an exception upon next run as it was reading a
bytes when it expected an integer.

The starlight effect and some brightnesses were affected.

Fixes #1351.
Fixes #1354.

Fixes #1352

This patch adds several D-Bus methods for accessing the current state of
the devices (plus pylib API for the new functionality):
* get*Effect
* get*EffectColors
* get*EffectSpeed
* get*WaveDir
* restoreLastEffect

The star means e.g. getEffect, getLogoEffect, getScrollEffect, etc.

The last one can be used to reset to the previous effect after setting a
custom effect (which won't be persisted).

Co-authored-by: Luke Horwell <code@horwell.me>
Co-authored-by: Luca Weiss <luca@z3ntu.xyz>

Devices were throwing an exception that was:
- "embedded null byte"
- or "setCustom is not a valid method of interface"

This was due to devices missing a sysfs file in the driver. Or rather,
they had one (matrix_effect_custom), but was incorrectly specified here.

For devices that are missing a sysfs file, it's possible custom frames
are unsupported or was simply left out in the driver when the device was
added. Users of these devices should try amending their device in the
driver, as we don't have the hardware to check.

Fixes #1252
Addresses polychromatic/polychromatic#266

Closes #1304

https://github.com/bithatch/snake