From: Hunter Cobbs <hunter.cobbs@gmail.com>
To: linuxppc-dev@ozlabs.org
Subject: DWC_OTG Issues
Date: Fri, 18 Dec 2009 20:35:15 -0600 [thread overview]
Message-ID: <1261190115.14590.5.camel@mobiLinux> (raw)
In-Reply-To: <1261176637-23912-1-git-send-email-ptyser@xes-inc.com>
Hello list. I've run into a rather odd problem. I seem to have a
problem with full-speed isochronous transfers across a USB2.0 Hub. I
believe this was observed before with the general EHCI drivers in Linux.
In the latest branch of the kernel, the EHCI driver has some "Enhanced
Transaction Translation" scheduling. This would be great for me to use
as it seems to directly address the issues I've seen. However, I'm not
really sure on how to proceed because the DWC_OTG driver is not GPL code
while the EHCI code I'd like to use is. Therefore, I don't believe that
I can port the Enhanced Transaction Translation routine into the DWC_OTG
driver without violating both the GPL and Synopsis's own driver.
Does anyone have a suggestion on how to proceed?
next prev parent reply other threads:[~2009-12-19 2:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-18 22:50 [PATCH] powerpc/85xx: Fix SMP when "cpu-release-addr" is in lowmem Peter Tyser
2009-12-19 2:35 ` Hunter Cobbs [this message]
2009-12-19 18:56 ` DWC_OTG Issues Wolfgang Denk
2009-12-20 20:13 ` Hunter Cobbs
2009-12-20 21:58 ` Wolfgang Denk
2010-01-21 22:28 ` [PATCH] powerpc/85xx: Fix SMP when "cpu-release-addr" is in lowmem Peter Tyser
2010-01-25 16:50 ` Kumar Gala
2010-01-25 16:55 ` Kumar Gala
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