linux-kernel - Re: Kernel driver vs libusb performance

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Message-ID: <CAFub=KQuD_pBE-6yPV8dQOkbPC6ndi+6gO+MDJW+6iEPjZNBRw@mail.gmail.com>
Date:	Fri, 11 Jan 2013 16:10:30 +0200
From:	Ozan Çağlayan <ozancag@...il.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Kernel driver vs libusb performance

> Ah, my sympathies, USB on a rpi is horrible, and you will have all sorts
> of nasty issues, no matter how you end up doing this (in the kernel or
> userspace).

What kind of issues? Currently I can read from the device without
problem. But, I had very weird problems with 2 uvc cameras, you're
right.

> Test it out and see.  I really don't think that user vs. kernel space is
> going to be the issue here, I think you are going to see some very real
> problems with the hardware itself in this area.
>
> Best of luck,

Well If I were you I would probably write that simple driver in a few
hours but seen that I am not you, I wanted to learn will the effort
worth the result :)

Anyway, thanks!

-- 
Ozan Çağlayan
Research Assistant
Galatasaray University - Computer Engineering Dept.
http://www.ozancaglayan.com
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