Guys:
Odd odd odd. :^)
The only combination which seems to work for me is this:
static struct isp116x_platform_data csb625_isp116x_platform_data = {
.sel15Kres = 1,
.int_act_high = 0,
.int_edge_triggered = 0,
.no_power_switching = 1,
};
...
set_irq_type(IRQ_GPIO(22), IRQT_FALLING);
I haven't tracked down why yet, but it seems like if I set
int_edge_triggered or change the polarity of anything around, the PXA
stops responding to interrupts from the isp1161.
I notice that INT is high on the isp1161 after coming out of reset, so
that might help explain some of it. But I can't quite tell why the
edge-sensitivity in set_irq_type isn't working. Could be in the pxa
code, or could be in the init code for the isp116x.
I'm *really* concerned about the apparent mismatch between edge
triggering in the GPIO input, and level triggering in the isp116x
configuration. But so far things seem to work fine, which further makes
me think that somewhere, something isn't quite right--- or I'm not
testing hard enough.
I'm moving large files in and out of a USB pen drive, and doing
back-to-back-to-back fsck's with no apparent ill effects. So much to
investigate, so little time... :^)
b.g.
--
Bill Gatliff
[EMAIL PROTECTED]
Q: What lies on the bottom of the ocean and twitches?
A: A nervous wreck.
-------------------------------------------------------
SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
_______________________________________________
linux-usb-devel@lists.sourceforge.net
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
