Integrate parts (or most) of Chromium OS's gen_autosuspend_rules.py script

[thac0]

Summary says it all. See the following:

• https://chromium.googlesource.com/chromiumos/platform2/+/master/power_manager/udev/gen_autosuspend_rules.py

Investigate how much we can (or ought) to reuse/leverage, and integrate it into clr-power-tweaks.

[thac0]

Going to leverage the PCI_IDS and USB_IDS data sets directly and ignore the udev construction stuff altogether. A tip of the hat to the CrOS developers for writing a nice script that we can leverage. 😁

The CrOS script is written in Python. Currently, clr-power-tweaks only generates C-code (with a perl script) for sysfs/procfs nodes specified in clr-power-tweaks.conf. To effectively leverage the CrOS whitelist script, I deem it necessary to generate headers for inclusion by pci.c and usb.c.

With my pedant hat on, it seems overkill to require perl and python at build-time. I am seriously considering re-implementing generate-tweaks.pl in python so all generation is done in one scripting language (python).

[ahkok]

#14 completely removes the need for it. There is really no use for a compile time parsed static list - I just made it a static list in C.