2010-03-10 07:29:30     Isochronos support for ISP176x.

2010-03-10 07:29:30     Isochronos support for ISP176x.

Axel Alatalo (SWEDEN)

Message: 87040   

Hi

Reading on the wiki (  docs.blackfin.uclinux.org/doku.php?id=hw:cards:isp176x_usb_extender) it says that the driver supports isochronous transfers.

Browsing the forum and reading the source (/trunk/drivers/usb/host/isp1760-hcd.c) i get the impression the neither OTG nor isochronous mode is supported by the driver.

Is the wiki misstaken or have I understood the source wrong?

In the first case the wiki should be updated since it may misslead to people in the initial planning och a project.

-Axel

QuoteReplyEditDelete

2010-03-10 07:42:00     Isochronos support for ISP176x.

Michael Hennerich (GERMANY)

Message: 87041    The comment about the ISO support was for a different driver -

If you read a bit below:

For more details visit the project page on SourceForge

  sourceforge.net/project/showfiles.php?group_id=168333

Release Notes:

  sourceforge.net/project/shownotes.php?group_id=168333&release_id=526320

However - this driver was removed from our trunk source code repositories in favor of the mainlined isp1760-hcd driver you are referring to.

And Yes - You're right - this driver doesn't support isochronous transfers anymore.

I'll add a not that this driver doesn't exist on trunk anymore -

But it's up to go back in svn history and checkout the latest version, just before it was removed.

-Michael

QuoteReplyEditDelete

2010-03-10 08:41:54     Re: Isochronos support for ISP176x.

Axel Alatalo (SWEDEN)

Message: 87043   

Thanks for the reply.

So in theory I could check out the old driver and maybe even get it to work in an otherwise new uClinux dist? Or do you know of anything in linux that has changes since the driver vas removed that makes it improbable that the old driver will work in a new uClinux?

-Axel

QuoteReplyEditDelete

2010-03-10 08:48:59     Re: Isochronos support for ISP176x.

Michael Hennerich (GERMANY)

Message: 87044    You need to try - the whole USB stuff was in flux for quite a bit.

But I think most changes happened before we removed the driver.

QuoteReplyEditDelete

2010-03-10 10:45:58     Re: Isochronos support for ISP176x.

Axel Alatalo (SWEDEN)

Message: 87047   

Okay.

Tthank you very much

-Axel