[microblaze-uclinux] USB HOST interface

["Haudebourg, Mickael (Silica)" <Mickael.Haudebourg@xxxxxxxxxx>]

Hi 

 I want to impelement a host USB with microblaze. 
What really supported in terms of drivers and Host ? 
I can not evalaute the difficulte to implement a driver ...

Best regrds 
mickael


-----Original Message-----
From: owner-microblaze-uclinux@xxxxxxxxxxxxxx
[mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] On Behalf Of Dr. Johann
Pfefferl
Sent: vendredi 25 janvier 2008 11:53
To: microblaze-uclinux@xxxxxxxxxxxxxx
Subject: Re: [microblaze-uclinux] MDM UART support

Hello John,

yes you are right. It is not the best solution. But if you take a look
inside the function ulite_probe (file ./drivers/serial/uartlite.c) the
"id" number is simply used as an index into the "ports" array. Of course
it would be better to replace the static "ports" array by a dynamically
alocated linked list data structure.

For me it was only a quick and dirty hack to get the MDM uart running in
a system which also includes normal uartlite devices.

Regards,
  Hans

John Williams <jwilliams@xxxxxxxxxxxxxx> wrote:
> Hi Hans,
> 
> Dr. Johann Pfefferl wrote:
> > Hello,
> > 
> > in the macro XILINX_MDMUART_PLATFORM_INITIALISER the "id" field of 
> > the data structure must be set to a different value. For example
> > 
> > .id = (n+6)
> 
> Hmm, I wonder if it wouldn't be better instead for the uartlite driver

> itself to keep track of IDs handed out, and just increment them
itself.
>  Statically forcing a +N nmodifier is fragile, if anyone ever adds 
> more uartlite placeholders in thew platform init code, it will break.
> 
> What do you think?
> 
> John
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-- 
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