hi all: I found when debug compile option opened, usb driver will create ehci folder and 3 files, period, registers and async. They seems work like usbmon as explaind in ehci.txt in usb document. But when I try "cat async > /mnt/async.log" after plug in usb flash, the log shows nothing. but i did see the content when I "cat registers". Is there any setting or document I have to check first or the content of async will only show when I plug special device? -- Regards, -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
