* C67x00 USB problems
@ 2008-09-21 6:05 David H. Lynch Jr.
0 siblings, 0 replies; only message in thread
From: David H. Lynch Jr. @ 2008-09-21 6:05 UTC (permalink / raw)
To: linuxppc-embedded
Good news - works.
Bad news - sort of.
I am using the C67x00_HCD driver from 2.6.24 mainline.
If I kill off installing the interrupt handler and just poll it.
I can get the first port working - fairly slowly.
If I enable the interrupt handler I get lots of messages from the
Kernel about unhandled IRQ's and then the Kernel disables
the IRQ. Although sometimes I just get a kernel panic when loading
the driver.
The only way out of the irq handler without handling the IRQ is
// printk(KERN_ERR "c67x00_irq()00\n");
int_status = c67x00_ll_hpi_status(c67x00);
if (!int_status)
return IRQ_NONE;
But if that is failing then why are things working when polled ?
Clues would be greatly appreciated ?
Is there any interest in a patch to support polling the USB driver ?
--
Dave Lynch DLA Systems
Software Development: Embedded Linux
717.627.3770 dhlii@dlasys.net http://www.dlasys.net
fax: 1.253.369.9244 Cell: 1.717.587.7774
Over 25 years' experience in platforms, languages, and technologies too numerous to list.
"Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
Albert Einstein
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