On Tue, 15 Sep 2009, Toan Pham wrote: > Sorry, > > The file I just sent was a Ms. Excel file. > Here's a pdf version of it. > > And if you really want to analyze, i also attached usb_log.dtc file, > which can be analyzed with Total Phase Data Center. It can be > downloaded for free at the link below. > No installation is needed for the software. > > The beagle log file shows USB activities for the first 1m 42sec after boot up. > Dev #03 is the CDC device, 04 is the HID device. > CDC devices starts communication at frame number 549 to EOF (Basic > heart-beating between PC & CDC Device) > Note, HID device resets rapidly at frame number: 685, 839, 1028 and 1183 > > If you filter out device 03 (CDC device), transactions look normal and > without errors; > However, OHCD reports ETIME (-62) and EPROTOCOL (-71) errors. Okay, I'll look at these files a few days from now. Alan Stern -- 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
