On Mon, Apr 15, 2002 at 02:27:38PM -0500, William A. Gatliff wrote: > Guys: > > > I'm trying to establish USB communications between my PC (Red Hat 7.3, > linux-2.4.18-0.22) and an arm-linux target (CerfPod, > linux-2.4.9-rmk2-np1) using the SA1110. USB networking seems to work > fine (limited but successful testing), but usbserial does not.
Does the arm-linux target expect to be communicating through a "usbserial like" interface? > Here's the info from usbview: > > > Unknown Device > Manufacturer: tbd > Serial Number: 00000000 > Speed: 12Mb/s (full) > USB Version: 1.00 > Device Class: ff(vend.) > Device Subclass: 00 > Device Protocol: 00 > Maximum Default Endpoint Size: 8 > Number of Configurations: 1 > Vendor Id: fff0 > Product Id: 0001 > Revision Number: 0.01 > > Config Number: 1 > Number of Interfaces: 1 > Attributes: 40 > MaxPower Needed: 0mA > > Interface Number: 0 > Name: > Alternate Number: 0 > Class: ff(vend.) > Sub Class: 0 > Protocol: 0 > Number of Endpoints: 2 > > Endpoint Address: 82 > Direction: in > Attribute: 2 > Type: Bulk > Max Packet Size: 64 > Interval: 0ms Um, you're missing a out endpoint, which is necessary for the generic usb-serial driver to write data to. This is why writes will not work :) Do you have a pointer to the arm-linux code on the device that implements the usb device side interface? thanks, greg k-h _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
