Hi,
First, sorry about the bogus e-mail I just sent into this
thread.
> I reported some progress with the driver in my last e-mail
> (can successfully mount/read/write compact flashes inserted
> in a Trendnet's compact flash reader). But all this only
> with the debug info on. There is probably a timing problem
> somewhere so that if the debug info is removed (DPRINTK
> declared empty), the driver does not work any more.
The following patch solved the problem for me.
--- linux-2.6.9-rc4-usb/drivers/usb/core/hub.c.or 2004-11-23
17:37:30.000000000 +0200
+++ linux-2.6.9-rc4-usb/drivers/usb/core/hub.c 2004-11-23 18:39:55.000000000
+0200
@@ -2107,7 +2107,7 @@ hub_port_init (struct usb_device *hdev,
* - let SET_ADDRESS settle, some device hardware wants it
* - read ep0 maxpacket even for high and low speed,
*/
- msleep(10);
+ msleep(20);
retval = usb_get_device_descriptor(udev, 8);
if (retval >= 8)
break;
Now I can enjoy awesome 30kB/s transfer rates to/from the
memory sticks. Well, profiling will come later. I think I
have still few problems with interrupt TD-s, but I hope to
be able to clean up the patch soon.
Olav
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