On Wed, Mar 20, 2002 at 09:59:25PM +0100, Ralf Ertzinger wrote:
> Hi.
> 
> I tried 2.4.19-pre3 on my iBook2 today (to be exact: 2.4.19-pre3-ben0, which,
> to the best of my knowledge, does not differ from 2.4.19-pre3 in terms
> of USB), and detected that my USB flash device was no longer detected
> by it. 2.4.18 (again: 2.4.18-ben0) works fine.

Try removing and replugging your device in.

Or try the attached patch, it's helped some people out.

Let me know if either thing helps.

thanks,

greg k-h


diff -Nru a/drivers/usb/hub.c b/drivers/usb/hub.c
--- a/drivers/usb/hub.c Wed Mar 20 09:15:02 2002
+++ b/drivers/usb/hub.c Wed Mar 20 09:15:02 2002
@@ -655,11 +655,11 @@
  * Not covered by the spec - but easy to deal with.
  *
  * This implementation uses 400ms minimum debounce timeout and checks
- * every 10ms for transient disconnects to restart the delay.
+ * every 100ms for transient disconnects to restart the delay.
  */
 
 #define HUB_DEBOUNCE_TIMEOUT   400
-#define HUB_DEBOUNCE_STEP      10
+#define HUB_DEBOUNCE_STEP      100
 
 /* return: -1 on error, 0 on success, 1 on disconnect.  */
 static int usb_hub_port_debounce(struct usb_device *hub, int port)

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