From: Peter Korsgaard <jacmet@sunsite•dk>
To: dhlii@dlasys•net
Cc: linuxppc-embedded <linuxppc-embedded@ozlabs•org>
Subject: Re: Is anyone using the C67x00 USB Host ?
Date: Tue, 09 Dec 2008 22:11:44 +0100 [thread overview]
Message-ID: <87wse9m4tr.fsf@macbook.be.48ers.dk> (raw)
In-Reply-To: <493ED385.7070601@dlasys.net> (David H. Lynch, Jr.'s message of "Tue\, 09 Dec 2008 15\:22\:29 -0500")
>>>>> "David" == David H Lynch <dhlii@dlasys•net> writes:
Hi,
>> No activity on the interrupt pin or is it always active?
>>
David> Neither:
David> The USB system does not function with interrupts, and the
David> kernel reports lots of unhandled IRQ's.
Of the correct IRQ number?
David> I beleive that
David> int_status = c67x00_ll_hpi_status(c67x00);
David> if (!int_status)
David> return IRQ_NONE;
David> is always exiting IRQ_NONE;
That would be suprising if the c67x00 is triggering the interrupt.
David> If I replace the request_irq() call with installation of a
David> timer service routine that basically periodically calls the
David> interrupt handler, everything works fine - albeit slowly.
And what does c67x00_ll_hpi_status() return in your timer routing?
--
Bye, Peter Korsgaard
next prev parent reply other threads:[~2008-12-09 21:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-05 15:32 Is anyone using the C67x00 USB Host ? David H. Lynch Jr.
2008-12-08 9:13 ` Peter Korsgaard
2008-12-09 20:22 ` David H. Lynch Jr.
2008-12-09 21:11 ` Peter Korsgaard [this message]
2008-12-08 14:11 ` Michal Simek
2008-12-09 20:27 ` David H. Lynch Jr.
2008-12-10 9:20 ` Michal Simek
2008-12-10 12:00 ` Peter Korsgaard
2008-12-10 14:36 ` Michal Simek
2008-12-10 14:43 ` Peter Korsgaard
2008-12-10 16:34 ` Michal Simek
2008-12-11 23:52 ` David H. Lynch Jr.
2008-12-12 7:14 ` David H. Lynch Jr.
2008-12-13 18:41 ` David H. Lynch Jr.
2008-12-13 18:58 ` Peter Korsgaard
2008-12-13 20:27 ` David H. Lynch Jr.
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