Date: Thu, 9 Jun 2005 22:24:46 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-hackers@freebsd.org Cc: Norbert Koch <NKoch@demig.de> Subject: Re: usbd.conf: detach ukbd Message-ID: <200506092224.50203.hselasky@c2i.net> In-Reply-To: <42A86529.5020103@savvis.net> References: <000001c56cf8$fffeb920$4801a8c0@ws-ew-3.W2KDEMIG> <42A86529.5020103@savvis.net>
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On Thursday 09 June 2005 17:50, Maksim Yevmenkin wrote: > Norbert, > > > when running usbd (under FreeBSD 4.11) with > > -dv switches I can see that a usb keyboard > > correctly attaches as ukbd0, > > but detaches as fall-through "USB device". > > does something like > > device "USB keyboard" > devname "ukbd[0-9]+" > attach "foo" > detach "bar" > I'm not sure if detach is supported like that, because the "ukbd" device name will not be passed to "usbd" during detach. Then one needs to match against the class/subclass of the USB-keyboard: device "USB keyboard" class 3 subclass 1 detach "xxxx ukbd0" Else if devd is not available on 4.11 you will have to change some code and compile a new kernel, from what I can see. To the file /sys/dev/usb/ukbd.c add this: static void usbd_add_device_detach_event(device_t self) { struct usb_event ue; bzero(&ue, sizeof(ue)); strlcpy(ue.u.ue_device.udi_devnames[0], device_get_nameunit(self), USB_MAX_DEVNAMELEN) ; usb_add_event(USB_EVENT_DEVICE_DETACH, &ue); return; } ukbd_detach() { ... usbd_add_device_detach_event(self); return (0); } This will make the suggestion from Maksim work. A generic solution would be to call "usbd_add_device_detach_event()" from the "bus_child_detached" method of uhub, which must be added. Also one can change "usb_disconnect_port()" to generate the event before the sub-devices are detached, but that might not work in all cases. --HPS
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