[PD] RPI Alsa mmap support

[Pierre Massat]

Hi Julian,

Thanks for the feedback, I think i'll give it a try sometime soon.

Cheers,

Pierre.


2013/5/10 Julian Brooks <jbeezez at gmail.com>

> Hey Pierre,
>
> Not sure if the 2 are related but presuming they are...
> I've just been testing an ESI UDJ6 soundcard and the image I backed up
> before updating the firmware would only run the card  with the usb and
> ethernet slowdown options.  Post rpi-update got 6 channels of audio without
> either slowdown required though I think it does run better (less system
> resources) with both options enabled.
>
> My trusty ol' Griffin just 'works' with both installs so didn't notice any
> difference but I haven't yet checked whether usb slowdown is still required
> for duplex with that soundcard as of yet.
>
> This is on a rev1 256meg board btw.
>
> Regards,
>
> Julian
>
>
> On 8 May 2013 14:33, Pierre Massat <pimassat at gmail.com> wrote:
>
>> hi Julian,
>>
>> Could you please tell us what difference this makes in terms of
>> performance ? Do you use JACK ? Is this any better than with Pd only ?
>>
>> Cheers,
>>
>> Pierre.
>>
>>
>> 2013/5/8 Julian Brooks <jbeezez at gmail.com>
>>
>>>  Thanks to Dan for the
>>> 'update alsa mmap' command'
>>> Thought I'd buggered up my install until I ran that command, now all
>>> happy again.
>>>
>>> Julian
>>>
>>>
>>> On 4 May 2013 20:18, Julian Brooks <jbeezez at gmail.com> wrote:
>>>
>>>> Hi all,
>>>>
>>>> Dunno if everyone's on this already but looks useful:
>>>>
>>>> http://martinezjavier.wordpress.com/2013/04/27/mmap-support-for-raspberry-pi-bcm2835-alsa-driver/
>>>>
>>>> From here:
>>>>
>>>> http://www.raspberrypi.org/phpBB3/viewtopic.php?f=38&t=33462&p=334943#p334943
>>>>
>>>> Not tested as of yet but anything that squeezes a bit more audio
>>>> performance out of the RPi is to be welcomed.
>>>>
>>>> rpi-update ahoy,
>>>>
>>>> Julian
>>>>
>>>
>>>
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>>
>
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