Date: Mon, 24 Sep 2012 18:20:07 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-hackers@freebsd.org, geoffrey levand <geoffrey.levand@mail.ru> Subject: Re: How to claim only some of USB interfaces of a composite USB device Message-ID: <201209241820.07558.hselasky@c2i.net> In-Reply-To: <1348410653.373800982@f180.mail.ru> References: <1348410653.373800982@f180.mail.ru>
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On Sunday 23 September 2012 16:30:53 geoffrey levand wrote: > Hi, > > i have the following problem. > I have a composite USB device with multiple USB interfaces. Some of > interfaces belong to the Bluetooth device and other to the WLAN device. > The problem is i want my WLAN driver to claim only the interfaces which > belong to the WLAN device. But ng_ubt kernel driver claims all interfaces > for itself beginning with the interface 0. Therefore, my WLAN driver > doesn't work if ng_ubt is loaded first. > > The second question is, why FreeBSD USB stack calls the match callback of > my WLAN driver only once with USB interface index 0. Shouldn't it call the > match callback for each interface on a USB device ? Linux kernel e.g. does > it per USB interface. > > regards Hi, If the interfaces are parented to another interface, they are not probed. Read the UBT specification at usb.org and provide a patch that will only grab bluetooth interfaces. --HPS
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