Re: EOVERFLOW problem with usb_control_msg
Frank Kingswood <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
Alan Stern wrote: > On Mon, 20 Aug 2007, Frank Kingswood wrote: > >> Hallo! >> >> I am trying to develop a kernel module for the CH341 USB-to-serial >> adaptor. I have working libusb code which sets up the device, but am >> having problems repeating this in the kernel. >> >> The first control message that reads data from the device returns with >> -EOVERFLOW, which the documentation describes as the USB device >> babbling. There is no data on the bus, however. >> > > Try using usbmon (see Documentation/usb/usbmon.txt). How do you know > there is no data on the bus? > I have a LeCroy USB tracer connected. I'll look at usbmon, thanks for the tip. Frank ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel