From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christos Gkekas <chris.gekas@gmail.com>
Subject: Re: Understanding the wireless architecture
Date: Sun, 8 Oct 2017 14:12:34 +0100
Message-ID: <20171008131234.GA5228@inspiron>
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To: Zheng Lv <lv.zheng.2015@gmail.com>
Cc: Madhu K <madhu.sk89@gmail.com>, linux-newbie@vger.kernel.org

On 08/10/17 01:20:21 +0800, Zheng Lv wrote:
> On Sat, Oct 07, 2017 at 09:23:04PM +0530, Madhu K wrote:
> > I am kernel newbie, I wanted to learn linux wireless architecture and
> > I want to write some wireless drivers. So please suggest me some
> > tutorials or documents which will help me to understand the linux
> > wireless device drivers architecture.
> 
> I am also newbie. Although I have no plan to learn wireless
> architecture, I do think that Linux kernel (device driver module)
> programming is not newbie-friendly.
> 
> In my opinion, LDD3 is somehow outdated. Wireless network is not
> covered, while there is a full chapter covering parallel port, which is
> hard for newbies to learn due to difficulty to buy appropriate hardware.
> 
> Moreover, many interfaces are updated. Semaphores have been replaced by
> mutexes long ago. There are also advanced .{read|write}_iter functions
> in file_operations which can replace {.read|.write}. I cannot understand
> the read_iter_zero function in drivers/char/mem.c after I read LDD3.
> 
> I wish a better resource for newbies to learn driver programming, maybe
> LDD4, maybe a more detailed book elsewhere.
> 
> Cheers
> Zheng Lv

The kernel is changing at a very rapid pace, so books quickly become out
of date. Perhaps the best source of information would be to check online
for tutorials and documentation. There is also a Documentation directory
in the kernel sources, you can also check there for information.

I did a quick online search and got many results, among which:
https://wireless.wiki.kernel.org/
https://www.linux.com/blog/linux-wireless-Networking-short-walk

Regards,
Chris

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