Message-ID: <20131103161819.GA4983@linux>
Date:	Sun, 3 Nov 2013 18:18:31 +0200
From:	Aldo Iljazi <mail@...o.io>
To:	andreas.thalhammer@...ux.com
Cc:	linux-kernel@...r.kernel.org
Subject: Re: A Desktop Linux idea: modulized open hardware database for the
 linux kernel config

 andreas.thalhammer@...ux.com wrote:

> Hello LKML!
> 
> I am a Linux Desktop user since around 2001. Doing the math, that’s more than 
> a decade!
> 
> Having watched http://www.youtube.com/watch?v=jjRAKuis7T8 (LinuxCon 2013, Dirk 
> Hohndel and Linus Torvalds on stage) I decided to share an idea I had to make 
> kernel building easier for computer end-users:
> 
> How aboud a free and open hardware database for configuring Linux?
> 
> My idea would make a very simple to get kernel configuration for a modulized 
> hardware and feature base. It should be some kind of open for everybody 
> database in which everyone may participate.
> 
> (This would off course only be of use for power users or developers. Regular 
> users will use stock kernels from their Linux distribution anyway. BTW, I use 
> Gentoo Linux.)
> 
> An example:
> My computer is a PC. The motherboard is an MSI 890FXA-GD70, it has an AMD 
> Phenom II X6 1090T in the CPU slot. So this setup would be the basic entry to 
> look for, which will provide a kernel configurtion for this specific hardware. 
> For example, the module for the Fintek F71889ED Super IO Sensor has to be 
> selected (CONFIG_SENSORS_F71882FG) as well as CONFIG_SENSORS_K10TEMP for the 
> CPU.
> 
> I  know lm_sensors has a tools for that already: sensors-detect. But not 
> everything is covered there, is there?
> 
> Then I would also combine this config with a config module for my graphics 
> card. It is a Radeon HD 6770, so readonkms has to be selected properly. Some 
> kernel parameters may also be wise, such as video=radeondrmfb, radeon.aspm=1 
> and radeon.dpm=1.
> 
> It should also be possible to combine this config with a config module for my 
> monitor. This will show that the resolution of this monitor is 1680x1050. 
> Unfortunately this resultution is not part of the VESA BIOS, so the kernel 
> command-line parameter video=radeondrmfb will be expanded by 1680x1050-32@60.
> 
> Some basic profiles may define how the PC will be used: i.e. as a file server, 
> as a Desktop conputer or as a gaming computer. A "cutting edge with all the 
> new features" profile may select everything that is usable for this computer.
> 
> Every ISA/EISA/VLB/PCI/AGP/PCIe expansion card can and will add some config 
> settings to the big kernel configuration. I.e. if you had a DVB-TV card or 
> whatever.
> 
> A basic "All USB-end-user-devices" config module for all possible USB devices 
> may select everything except those self-made stuff, like a thermal probe. On 
> the other hand, specific stuff should be allowed too. I.e. the Digitus 
> Cardreader All-in-one, USB 3.0 (DA-70330) – is a specific reader module 
> required (CONFIG_USB_STORAGE_*)?
> 
> In the end there would be a hardware database, maybe combined with a wiki, 
> that includes developer information like hardware addresses and such as well 
> as user reports and kernel configuration modules for that hardware.
> 
> Jumping to a newer kernel will automatically set the new/changed 
> CONFIG_SOMETHING for the selected profile.
> 
> This would also be handy for Laptops and very narrow configured hardware such 
> as Apple computers (my Power Mac G4 for example).
> 
> A tool for this could go into the kernel sources. It would detect the hardware 
> present in the system using everything that is available (e.g. lspci) and show 
> a configuration menu (make config-alike) that will enable the user to select 
> or deselect specific hardware config modules and profiles (i.e. "file 
> server").
> 
> Compiling a new kernel will then not result in searching the whole kernel 
> config for new or changed options like it is now (just recently I had to 
> change video=radeonfb to video=radeonkmsfb in my GRUB config).
> 
> For kernel developers this could also be a very useful tool, because users can 
> point to the specific hardware that makes troubles on Linux. And, like it is 
> in a community, developers may be able to reach users willing to participate 
> in testing new patches for fixing these troubles…
> 
> This is just an idea. Now it’s out there – do with it whatever you like. The 
> idea is hereby released under the GPL-2 :-)
> --
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So, you are saying that this should be available for power users only,
since it requires kernel compilation.

I have a few points to make.

1. Wouldn't power users know how to configure the kernel anyway for
their system?

2. What about future hardware upgrades (on both a laptop and desktop
machines).

3. What's wrong with stock distribution kernels?

4. Wouldn't this take a great amount of manpower for I guess minimum
benefits?
-- 
Aldo Iljazi
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