Introducing Myself, Looking to Learn

Greg Freemyer greg.freemyer at
Tue Sep 3 22:44:18 EDT 2013


I have external sata to usb3 adapter that is not supported by the kernel.  I'm willing to buy one for someone willing to get the kernel support done.

This is my second offer.  No takers the first time.

Fyi: I expect no true code is needed, just updating a pid / vid table somewhere.  I don't know the usb driver stack so I have no idea where said table is.

Fyi2: I tend to focus on filesystems recently so diving into usb is not a goal of mine.


Rakesh Ganimineni <everfriendlyrakesh at> wrote:
>I would suggest you to fix on a module and start following what are the
>bugs in it and see if you can fix it or try understand what others fix.
>From: Arlie Stephens
>Sent: 4/9/2013 7:08
>To: Varad Gautam
>Cc: kernelnewbies at
>Subject: Re: Introducing Myself, Looking to Learn
>Hi Varad,
>On Sep 04 2013, Varad Gautam wrote:
>> Hi!
>> I want to start working on the Linux kernel but am an absolute
>> beginner. I am currently on my way through Robert Love's Linux
>> Kernel Development and need help with finding something I can work
>> on to get a hang of what it's like.
>How much of a beginner are you? In particular, how much do you know
>about operating system kernels in general? And how much
>multi-threaded programming have you done, in situations where you have
>to manage your own locking?
>If you don't have good practical understanding of concurrency, you
>might want to do yourself a favour and do some work with a large
>multi-threaded program until you've got practical experience with race
>conditions, lock contention, and deadlocks.
>Linux is a fairly mature monster. This means that the simple outlines
>of what all OSes do tend to be obscured by layers of complexity.
>That's one some folks use BSD for their OS-kernel classes. You'll be
>doing more digging in linux. Will you be comfortable with that?
>> I have also subscribed to the LKML, but find it completely
>> incomprehensible!
>My question would be "incomprehensible how?" There's a lot of shared
>context, which you won't have, and diffs aren't the best way to learn
>what's in a piece of code. That level of "incomprehensible" makes
>sense to me.
>Beyond that, there's learning you need to do.
>> As a beginner, would it be better to work with the
>> kernel of a specific OS (I'm running Ubuntu), or work on the
>> upstream kernel?
>Pick one that you actually run - that way you're set up to try out the
>results of your experiments, and more likely to encounter some problem
>that motivates you to attack it. Personally I'd prefer not to be
>testing on my development system [hate it when that's unstable], but
>if you aren't playing with hardware, VMs make great test
>Beyond that, my advice would be to do something trivial. How about a
>kernel module that prints "Hello world"? It's useless, but you'll
>start internalizing the build system. Then do something else trivial,
>that let's you poke the kernel somewhere else. Eventually either it'll
>start making sense, and your ambitions will increase - or you'll
>decide you aren't having fun and try somethign else.
>(Arlie Stephens				arlie at
>Kernelnewbies mailing list
>Kernelnewbies at
>Kernelnewbies mailing list
>Kernelnewbies at

Sent from my Android phone with K-9 Mail. Please excuse my brevity.
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