Date: Tue, 06 Jan 2004 00:43:20 +0000 From: Jay Cornwall <jay@evilrealms.net> To: freebsd-hackers@freebsd.org Subject: USB stack / configuration 0 Message-ID: <3FFA04A8.30601@evilrealms.net>
next in thread | raw e-mail | index | archive | help
Hi I've just finished a patch to alleviate several panics in the ugen driver (related to devfs issues and setting a USB device's configuration to USB_UNCONFIG_NO). I'm about to submit to freebsd-current@, but I need to clarify something first. When setting a USB device to configuration number USB_UNCONFIG_NO (i.e. 0), the device goes into an unconfigured state with an invalid dev->cdesc. How does one then leave this unconfigured state and reconfigure the device to accept configuration changes? (all USB_SET_CONFIG changes are currently refused after going into configuration 0 - I'm not sure if this is the desired behaviour or a bug) All I can think of is unplugging/plugging the device back in. In which case, why would we want to let users set USB_UNCONFIG_NO in the first place? -- Cheers, Jay http://www.evilrealms.net/ - Systems Administrator & Developer http://www.imperial.ac.uk/ - 3rd year CS student
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3FFA04A8.30601>