Chris,
Yes the USB controller is limited when acting as USB Host by the
available hw EP's (4 Rx, 4Tx, 1Control).
If you are familiar with 2.6.10 kernel (and I think you are based on
your messages) there have been further updates that will enhance supporting
multiple devices such as WiFi along with USB Hubs on DM355 platform.
The patch of interest would be enabling a feature called "interrupt
endpoint scheduling". This is already available in the 2.6.10 based DM355 USB
updates in TI external site.
Either this of next week we would be submitting ("Interrupt Endpoint
Scheduling" the patch to the community on the GIT kernel.
Regards
Swami
(Type "pspproducts" in you web browser for PSP info)
http://dbdwss01.india.ti.com/pspproducts/
PSP downloads at :
http://software.ti.com/swcoe/intranet/reports/pds/PSP_releases.php
Office : +91-80-25048629
-----Original Message-----
From: Chris Sykes [mailto:[EMAIL PROTECTED]
Sent: Thursday, December 04, 2008 4:38 PM
To: [email protected]
Cc: Subbrathnam, Swaminathan
Subject: Re: DM355 git USB status
Subbrathnam, Swaminathan wrote:
> Chris, Current DaVinci GIT does not have support for DM355 USB.
> Updates are in progress over the next few weeks.
Excellent, thanks. From reading the comments in the musb code, it
sounds like the hardware is a bit limited when it comes to supporting
hubs & multiple devices.
I was wondering how well this might be supported by the coming patches,
e.g. hanging both USB mass-storage and WiFi devices off an external hub.
Can this be supported reliably, or is there more work to be done in the
musb driver to support some kind of scheduling/sharing for the hardware
resources?
Thanks for your help and the quick response.
--
Chris Sykes
Next Step Solutions Limited
Unit K6 Liners Industrial Estate, Pitt Road
Freemantle, Southampton, UK, SO15 3FQ
Email: [EMAIL PROTECTED]
Tel: 02380 224200
Mob: 07726 305061
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