Date: Thu, 27 Nov 2008 15:23:17 +0200 From: Andriy Gapon <avg@icyb.net.ua> To: freebsd-hackers@FreeBSD.org, freebsd-usb@FreeBSD.org Subject: Re: ukbd attachment and root mount Message-ID: <492E9F45.2090404@icyb.net.ua> In-Reply-To: <492E952A.80104@icyb.net.ua> References: <4911BA93.9030006@icyb.net.ua> <491ABFCD.3060309@icyb.net.ua> <Pine.GSO.4.64.0811120352100.1597@zeno.ucsd.edu> <491AC502.9000507@icyb.net.ua> <20081112121410.GA24629@icarus.home.lan> <491ACA19.2040008@icyb.net.ua> <20081112123315.GA24907@icarus.home.lan> <491AD0CB.8050309@icyb.net.ua> <20081112132124.GA25637@icarus.home.lan> <491ADB3B.2090000@icyb.net.ua> <492E952A.80104@icyb.net.ua>
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I increased debug level in uhub and also switched mouse and keyboard ports hoping that order might matter. It didn't. Here's fresh usbdevs output snippet: Controller /dev/usb2: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00 uhub2 port 1 addr 3: low speed, power 100 mA, config 1, USB Keyboard(0x0101), CHESEN(0x0a81), rev 1.10 ukbd0 uhid0 port 2 addr 2: low speed, power 98 mA, config 1, USB-PS/2 Optical Mouse(0xc040), Logitech(0x046d), rev 24.30 ums0 And here's a new snippet from cold explore dmesg: uhub2: uhub_explore: port 1 status 0x0100 0x0001 + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + So, hm, it looks like a change in connection status is reported but current status is reported as not connected. + I wonder why? + Could this be related to how we perform UHCI handover from BIOS to kernel? + Our uhci code seems to be much simpler than what MS folks described here: + http://www.microsoft.com/whdc/archive/usbhost.mspx#EQHAC uhub_explore: status change hub=1 port=1 uhub_explore: port=1 !CURRENT_CONNECT_STATUS uhub2: uhub_explore: port 2 status 0x0301 0x0001 uhub_explore: status change hub=1 port=2 usbd_reset_port: port 2 reset done, error=NORMAL_COMPLETION usbd_new_device bus=0xffffffff80c7d000 port=2 depth=1 speed=1 usbd_setup_pipe: dev=0xffffff0004a16d00 iface=0 ep=0xffffff0004a16d38 pipe=0xffffff0004a16d08 uhci_open: pipe=0xffffff0004a16c00, addr=0, endpt=0 (1) usb_allocmem: adding fragments usbd_new_device: adding unit addr=2, rev=200, class=0, subclass=0, protocol=0, maxpacket=8, len=18, speed=1 usbd_ar_pipe: pipe=0xffffff0004a16c00 usbd_setup_pipe: dev=0xffffff0004a16d00 iface=0 ep=0xffffff0004a16d38 pipe=0xffffff0004a16d08 uhci_open: pipe=0xffffff0004a16b00, addr=0, endpt=0 (1) usbd_ar_pipe: pipe=0xffffff0004a16b00 usbd_setup_pipe: dev=0xffffff0004a16d00 iface=0 ep=0xffffff0004a16d38 pipe=0xffffff0004a16d08 uhci_open: pipe=0xffffff0004a16a00, addr=2, endpt=0 (1) usbd_new_device: new dev (addr 2), dev=0xffffff0004a16d00, parent=0xffffff0001338c00 usbd_probe_and_attach: trying device specific drivers usbd_probe_and_attach: no device specific driver found usbd_probe_and_attach: looping over 1 configurations usbd_probe_and_attach: trying config idx=0 usbd_set_config_index: (addr 1) cno=2 attr=0xa0, selfpowered=0, power=98 usbd_set_config_index: set config 1 ums0: <Logitech USB-PS/2 Optical Mouse, class 0/0, rev 2.00/24.30, addr 2> on uhub2 ums0: 8 buttons and Z dir. -- Andriy Gapon
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