Re: commands to unconfigured usb device
David Brownell <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Wednesday 25 July 2007, Gabriel Maganis wrote: > Hello, > Section 9.4 of the USB spec says that devices should respond to > the standard requests like GET_STATUS even if they haven't been > configured yet or given an address. How could one do that without a > pointer to a struct usb_device? You can't do it without a usb_device handle ... which basically means that only usbcore (or maybe usbfs) will access devices in those states. During enumeration, usbcore makes lots of requests to devices that aren't configured, and even a bunch to devices before they are addressed. - Dave ------------------------------------------------------------------------- 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