Re: Class specific interface descriptors parsing issue
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Tue, 17 Apr 2007, David Brownell wrote: > > All examples found in USB specification documents put the > > CS_INTERFACE descriptors between the INTERFACE and ENDPOINT descriptors, but > > I found no mention of this being a requirement. > > > > The interface descriptor parsing code (usb_parse_interface in > > drivers/usb/core/config.c) stores a pointer to those extra data in the struct > > usb_host_interface 'extra' field. It currently only handles extra data > > between INTERFACE and ENDPOINT descriptors. All descriptors after the > > endpoint descriptors are just skipped. > > Not stored away as "extra" endpoint data? There's a field there to > hold such stuff, and I was sure that it got used ... It does get used. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel