From owner-freebsd-usb@FreeBSD.ORG Sun Apr 25 07:47:01 2010 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0054C1065672 for ; Sun, 25 Apr 2010 07:47:01 +0000 (UTC) (envelope-from hselasky@c2i.net) Received: from swip.net (mailfe03.swip.net [212.247.154.65]) by mx1.freebsd.org (Postfix) with ESMTP id 58AB48FC23 for ; Sun, 25 Apr 2010 07:46:59 +0000 (UTC) X-Cloudmark-Score: 0.000000 [] X-Cloudmark-Analysis: v=1.0 c=1 a=-hLAtItR7ToA:10 a=8nJEP1OIZ-IA:10 a=M8b_wTzEtboA:10 a=MnI1ikcADjEx7bvsp0jZvQ==:17 a=8kQB0OdkAAAA:8 a=36QNu89yJZvjxO7gzpcA:9 a=iyA9UL0IUMvNuvy8yrIA:7 a=INtgzwCg_ITr_6G4wIANxW3t_-cA:4 a=wPNLvfGTeEIA:10 a=9aOQ2cSd83gA:10 a=_9dNVqz9WGIWym1m:21 a=TXGoXlgVfOy3Z8Ce:21 Received: from [188.126.201.140] (account mc467741@c2i.net HELO laptop002.hselasky.homeunix.org) by mailfe03.swip.net (CommuniGate Pro SMTP 5.2.19) with ESMTPA id 1401581506; Sun, 25 Apr 2010 09:46:58 +0200 From: Hans Petter Selasky To: freebsd-usb@freebsd.org Date: Sun, 25 Apr 2010 09:44:24 +0200 User-Agent: KMail/1.12.4 (FreeBSD/8.0-STABLE; KDE/4.3.4; amd64; ; ) References: <20100424140902.4b7meoicg084g04g@webmail.diode.be> <201004241701.34223.hselasky@c2i.net> <20100424211809.fgn1vc5qaswkg8kk@webmail.diode.be> In-Reply-To: <20100424211809.fgn1vc5qaswkg8kk@webmail.diode.be> X-Face: +~\`s("[*|O,="7?X@L.elg*F"OA\I/3%^p8g?ab%RN'(; _IjlA: hGE..Ew, XAQ*o#\/M~SC=S1-f9{EzRfT'|Hhll5Q]ha5Bt-s|oTlKMusi:1e[wJl}kd}GR Z0adGx-x_0zGbZj'e(Y[(UNle~)8CQWXW@:DX+9)_YlB[tIccCPN$7/L' MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201004250944.24898.hselasky@c2i.net> Cc: Subject: Re: webcamd and cameras with Micron (MT9M0x1 and MT9T0x1) chips X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Apr 2010 07:47:01 -0000 On Saturday 24 April 2010 21:18:09 maillist@diode.be wrote: > Quoting Hans Petter Selasky : > > Hi, > > > >> For both Micron cameras, #webcamd -B just gives `Cannot find USB > >> device'. > > > > This usually happens when the webcamd is not listed. > > > >> dmesg output for the Mightex camera (MT9M001 chip): > >> ugen3.2: at usbus3 > >> > >> and usbconfig -d ugen3.2 dump_device_desc gives: > >> ugen3.2: at usbus3, cfg=0 md=HOST spd=HIGH > >> (480Mbps) pwr=ON > >> > >> bLength = 0x0012 > >> bDescriptorType = 0x0001 > >> bcdUSB = 0x0200 > >> bDeviceClass = 0x0000 > >> bDeviceSubClass = 0x0000 > >> bDeviceProtocol = 0x0000 > >> bMaxPacketSize0 = 0x0040 > >> idVendor = 0x04b4 > >> idProduct = 0x0228 > >> bcdDevice = 0x0000 > >> iManufacturer = 0x0001 > >> iProduct = 0x0002 > >> iSerialNumber = 0x0000 > >> bNumConfigurations = 0x0001 > >> > >> > >> For the MT9T031 camera (likely prototype), dmesg gives: > >> ugen3.2: at usbus3 > >> > >> and usbconfig -d ugen3.2 dump_device_desc: > >> ugen3.2: at usbus3, cfg=0 md=HOST spd=HIGH (480Mbps) > >> pwr=ON > >> > >> bLength = 0x0012 > >> bDescriptorType = 0x0001 > >> bcdUSB = 0x0200 > >> bDeviceClass = 0x0000 > >> bDeviceSubClass = 0x0000 > >> bDeviceProtocol = 0x0000 > >> bMaxPacketSize0 = 0x0040 > >> idVendor = 0x0634 > >> idProduct = 0x1007 > >> bcdDevice = 0x0021 > >> iManufacturer = 0x0001 > >> iProduct = 0x0002 > >> iSerialNumber = 0x0000 > >> bNumConfigurations = 0x0001 > >> > >> > >> > >> > >> Now, I have no coding skills, but thought it would be good to have a > >> look into the driver code. I hoped I would find Vendor and Product > >> id's that differed from how the camera identified, this explaining the > >> refusal to associate. But while some other v4l drivers appear to > >> contain things like {USB_DEVICE(0xXXXX, 0xXXXX), .driver_info=XXXXX}, > >> such code is absent from the mt9xxxx.c files. Instead, there is a > >> function data = reg_read(client, MT9M001_CHIP_VERSION) that does some > >> sort of identification. But this is on the i2c level, reading the chip > >> version number. I thought that for doing this, the system would > >> already need to know what Micron chip it is dealing with. > >> > >> Any thoughts would be appreciated. > > > > Hi, > > > > I did a little bit of grepping, and I think you need to patch the > > following file to get your webcam working: > > > > v4l-dvb/linux/drivers/media/video/gspca/sn9c20x.c > > > > You can use this entry as an example: > > > > {USB_DEVICE(0x0c45, 0x6240), SN9C20X(MT9M001, 0x5d, 0)}, > > > > The iProduct dump indicates this is the right place to hack for the > > MT9M001 one :-) > > > > --HPS > > I added > {USB_DEVICE(0x04b4, 0x0228), SN9C20X(MT9M001, 0x5d, 0)}, > to the list, with 0x5d as i2c address as the other two MT9M001 entries > have it too. After re-making ulinux and using the new webcamd from > that directory, I get > > Attached ugen3.2[0] to cuse init 0 > Cannot find USB device > > Interestingly, the other (MT9T031) camera, for which nothing changed, > only states `Cannot find USB device' without returning `Attached > [...]'. The Logitech cam, which used to work, states `Attached [...]' > and then `Creating /dev/video0'. > > But for this Logitech cam, pwcview now complains `Failed to access > webcam: Device not configured'. Note that I used the webcamd from > ports before, so I must have messed something up. I updated to the > latest svn version. I will update my ports too, as this doesn't appear > to have anything to do with the change to the code I made. > > On the other hand, webcamd still returns `Cannot find USB device' for > the MT9M001 camera. Maybe simply adding the corresponding USB_DEVICE() > entry was not what you meant? After you add that USB_DEVICE() entry, the following code should be called. Try adding CFLAGS+= -g in the Makefile. Then run webcamd via gdb. In gdb type: break gspca_dev_probe run at first break: next If you don't get the break, you're running an older version of webcamd. Try svn up! You might have to do: make fetch_clean make fetch cd patches/ ./do_patch.sh After svn up. /* -- device connect -- */ static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id) { return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), THIS_MODULE); } --HPS