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Topic: Webcam with sn9c20x driver on OpenWrt Kamikaze?

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Post #1
$p00ky
14 Jan 2010, 08:11

Dear community,

I have a problem with a webcam on Kamikaze.
I installed all the available drivers for usb video I found but it doesn't mount anything on /dev/video0 nor /dev/v4l/... when I plug my webcam in.
The webcam is a Sanwa CMS-V20SETSV (usb) supported through the sn9c20x driver on my ubuntu.
The router is a FON LaFonera2.0g (rev22010).
The os is Kamikaze (Linux OpenWrt 2.6.26.8).

kmod-video-nw8xx only failed because the required dependency kmod-usb-video cannot be found...

root@OpenWrt:/www# opkg install kmod-video-nw8xx
Installing kmod-video-nw8xx (2.6.26.8+0.0.99-atheros-1) to root...
Downloading http://downloads.openwrt.org/kamikaze/8.09.2/atheros/packages/kmod-video-nw8xx_2.6.26.8+0.0.99-atheros-1_mips.ipk
Connecting to downloads.openwrt.org (78.24.191.177:80)
kmod-video-nw8xx_2.6 100% |************************************************************************************************************| 18347  00:00:00 ETA
Collected errors:
 * ERROR: Cannot satisfy the following dependencies for kmod-video-nw8xx:
     *  kmod-usb-video *

When I plug my webcam in the USB port, it detects and mounts it but v4l or gspca don't do anything...

Here is the dmesg relevant log on my notebook (ubuntu):

[14276.720080] usb 1-3: new high speed USB device using ehci_hcd and address 6
[14276.873122] usb 1-3: configuration #1 chosen from 1 choice
[14276.991073] gspca: main v2.6.0 registered
[14277.027440] gspca: probing 0c45:624f
[14277.087772] sn9c20x: OV9650 sensor detected
[14277.087961] gspca: probe ok
[14277.088014] usbcore: registered new interface driver sn9c20x
[14277.088022] sn9c20x: registered

Then I have the video on /dev/video1 (/dev/video0 is the internal webcam)
Whereas on my router with OpenWrt:

dmesg on OpenWrt

ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver
PCI: Enabling device 0000:00:00.0 (0000 -> 0002)
PCI: Setting latency timer of device 0000:00:00.0 to 64
ohci_hcd 0000:00:00.0: OHCI Host Controller
ohci_hcd 0000:00:00.0: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:00.0: irq 5, io mem 0x80c20000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
USB Universal Host Controller Interface driver v3.0
PCI: Enabling device 0000:00:00.1 (0000 -> 0002)
ehci_hcd 0000:00:00.1: EHCI Host Controller
ehci_hcd 0000:00:00.1: new USB bus registered, assigned bus number 2
ehci_hcd 0000:00:00.1: irq 5, io mem 0x80c21000
ehci_hcd 0000:00:00.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 3 ports detected
usbcore: registered new interface driver usbserial
usbserial: USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
v4l2_common: Unknown symbol i2c_attach_client
Linux video capture interface: v2.00
usbserial: USB Serial support registered for cp2101
usbcore: registered new interface driver cp2101
cp2101: Silicon Labs CP2101/CP2102 RS232 serial adaptor driver v0.07
usbcore: registered new interface driver ov51x
ov51x_jpeg: 1.5.9 : ov51x USB Camera Driver
usbcore: registered new interface driver gspca
gspca: gspca driver 01.00.20 registered
usbcore: registered new interface driver quickcam
usbcore: registered new interface driver uvcvideo
USB Video Class driver (SVN r261)
usb 2-1: new high speed USB device using ehci_hcd and address 2
usb 2-1: configuration #1 chosen from 1 choice

Why gspca isn't doing anything after the webcam is plugged in on the router?
How can I have the same on OpenWrt as the gspca driver is available on OpenWrt?
Is it because of the driver  sn9c20x? How can I have its support on OpenWrt?














If it can help, I copy/paste some debugging commands:

lspci

root@OpenWrt:/tmp# lspci
00:00.0 USB Controller: NEC Corporation USB (rev 44)
00:00.1 USB Controller: NEC Corporation USB 2.0 (rev 05)
00:03.0 Ethernet controller: Atheros Communications, Inc. Device ff18 (rev 01)
root@OpenWrt:/tmp# lsusb
Bus 002 Device 003: ID 0c45:624f Microdia PC Camera (SN9C201 + OV9650)
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

And the dmesg wakes up if I unplug/plug the webcam:

root@OpenWrt:/tmp# dmesg | grep usb
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
usb usb1: configuration #1 chosen from 1 choice
usb 1-1: new full speed USB device using ohci_hcd and address 2
usb 1-1: device descriptor read/all, error 0
usb usb2: configuration #1 chosen from 1 choice
usb 2-1: new high speed USB device using ehci_hcd and address 2
usb 2-1: configuration #1 chosen from 1 choice
usbcore: registered new interface driver usbserial
usbserial: USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
usbserial: USB Serial support registered for cp2101
usbcore: registered new interface driver cp2101
usbcore: registered new interface driver ov51x
usbcore: registered new interface driver gspca
usbcore: registered new interface driver quickcam
usbcore: registered new interface driver uvcvideo
usb 2-1: USB disconnect, address 2
usb 2-1: new high speed USB device using ehci_hcd and address 3
usb 2-1: configuration #1 chosen from 1 choice

lsmod

root@OpenWrt:~# lsmod
Module                  Size  Used by    Tainted: P  
uvcvideo               51568  0 
quickcam               63696  0 
gspca                 628592  0 
ov51x_jpeg            136272  0 
cp2101                 10096  0 
videodev               25600  4 uvcvideo,quickcam,gspca,ov51x_jpeg
compat_ioctl32           416  1 uvcvideo
v4l1_compat            13744  2 uvcvideo,videodev
usbserial              23776  1 cp2101
ehci_hcd               30384  0 
uhci_hcd               20432  0 
ohci_hcd               17264  0 
ath_ahb               321920  0 
ath_hal               161440  2 ath_ahb
nf_nat_tftp              448  0 
nf_conntrack_tftp       2448  1 nf_nat_tftp
nf_nat_irc               864  0 
nf_conntrack_irc        2720  1 nf_nat_irc
nf_nat_ftp              1440  0 
nf_conntrack_ftp        4960  1 nf_nat_ftp
ipt_MASQUERADE          1152  0 
iptable_nat             3376  0 
nf_nat                 11232  5 nf_nat_tftp,nf_nat_irc,nf_nat_ftp,ipt_MASQUERADE,iptable_nat
xt_state                 832  0 
nf_conntrack_ipv4       8800  3 iptable_nat,nf_nat
nf_conntrack           39056  11 nf_nat_tftp,nf_conntrack_tftp,nf_nat_irc,nf_conntrack_irc,nf_nat_ftp,nf_conntrack_ftp,ipt_MASQUERADE,iptable_nat,nf_nat,xt_state,nf_conntrack_ipv4
ipt_REJECT              1888  0 
xt_TCPMSS               2720  0 
ipt_LOG                 4544  0 
xt_multiport            1824  0 
xt_mac                   704  0 
xt_limit                1216  0 
iptable_mangle          1184  0 
iptable_filter           960  0 
ip_tables               8816  3 iptable_nat,iptable_mangle,iptable_filter
xt_tcpudp               1856  0 
x_tables                8752  11 ipt_MASQUERADE,iptable_nat,xt_state,ipt_REJECT,xt_TCPMSS,ipt_LOG,xt_multiport,xt_mac,xt_limit,ip_tables,xt_tcpudp
ppp_async               7936  0 
ppp_generic            21376  1 ppp_async
slhc                    4480  1 ppp_generic
crc_ccitt                992  1 ppp_async
usbcore               102976  10 uvcvideo,quickcam,gspca,ov51x_jpeg,cp2101,usbserial,ehci_hcd,uhci_hcd,ohci_hcd

opkg list_installed

root@OpenWrt:~# opkg list_installed
base-files-atheros - 14.3-r18961 - 
bridge - 1.4-1 - 
busybox - 1.11.2-2.2 - 
ddns-scripts - 1.0.0-1.2 - 
dnsmasq - 2.47-3.3 - 
dropbear - 0.51-2 - 
firewall - 1-1.2 - 
gpioctl - 1.0-1 - 
hostapd-mini - 0.6.6-1.1 - 
hotplug2 - 0.9+r102-2 - 
iptables - 1.4.0-1 - 
iptables-mod-conntrack - 1.4.0-1 - 
iptables-mod-nat - 1.4.0-1 - 
kernel - 2.6.26.8-atheros-1 - 
kmod-ipt-conntrack - 2.6.26.8-atheros-1 - 
kmod-ipt-core - 2.6.26.8-atheros-1 - 
kmod-ipt-nat - 2.6.26.8-atheros-1 - 
kmod-ipt-nathelper - 2.6.26.8-atheros-1 - 
kmod-madwifi - 2.6.26.8+r3314-atheros-2.3 - 
kmod-ppp - 2.6.26.8-atheros-1 - 
kmod-pppoe - 2.6.26.8-atheros-1 - 
kmod-usb-core - 2.6.26.8-atheros-1 - 
kmod-usb-ohci - 2.6.26.8-atheros-1 - 
kmod-usb-serial - 2.6.26.8-atheros-1 - 
kmod-usb-serial-cp2101 - 2.6.26.8-atheros-1 - 
kmod-usb-uhci - 2.6.26.8-atheros-1 - 
kmod-usb2 - 2.6.26.8-atheros-1 - 
kmod-video-core - 2.6.26.8-atheros-1 - 
kmod-video-gspca - 2.6.26.8+20071224-atheros-1 - 
kmod-video-ov51x-jpeg - 2.6.26.8+1.5.9-atheros-1 - 
kmod-video-quickcam - 2.6.26.8+0.6.6-atheros-1.1 - 
kmod-video-uvc - 2.6.26.8+r261-atheros-1 - 
libgcc - 4.1.2-14.3 - 
libjpeg - 6b-1 - 
liblua - 5.1.4-2 - 
libncurses - 5.6-1 - 
libnl-tiny - 0.1-1 - 
libopenssl - 0.9.8i-3.2 - 
libpcre - 7.6-2 - 
libpthread - 0.9.29-14.3 - 
libsqlite3 - 3.5.9-1 - 
libuci - 0.7.3-1 - 
libuci-lua - 0.7.3-1 - 
libusb - 0.1.12-2 - 
libxml2 - 2.7.2-3 - 
lua - 5.1.4-2 - 
luci-admin-core - 0.8.8-1 - 
luci-admin-full - 0.8.8-1 - 
luci-admin-mini - 0.8.8-1 - 
luci-app-ddns - 0.8.8-1 - 
luci-app-upnp - 0.8.8-1 - 
luci-app-uvc_streamer - 0.8.8-1 - 
luci-cbi - 0.8.8-1 - 
luci-core - 0.8.8-1 - 
luci-http - 0.8.8-1 - 
luci-i18n-english - 0.8.8-1 - 
luci-ipkg - 0.8.8-1 - 
luci-sgi-cgi - 0.8.8-1 - 
luci-sys - 0.8.8-1 - 
luci-theme-base - 0.8.8-1 - 
luci-theme-openwrt - 0.8.8-1 - 
luci-uci - 0.8.8-1 - 
luci-uvl - 0.8.8-1 - 
luci-web - 0.8.8-1 - 
miniupnpd - 1.4-1 - 
mjpg-streamer - r68-2 - 
motion - 3.2.10.1-1 - 
mtd - 8.2 - 
nano - 2.0.7-1 - 
ntpclient - 2007_365-1.2 - 
opkg - 4564-3.1 - 
pciutils - 3.0.0-1 - 
ppp - 2.4.3-11.2 - 
ppp-mod-pppoe - 2.4.3-11.2 - 
qc-usb-utils - 0.6.6-1.1 - 
spcacat - 20071224-1 - 
swconfig - 1.2 - 
uci - 0.7.3-1 - 
uclibc - 0.9.29-14.3 - 
udevtrigger - 106-1.1 - 
usbutils - 0.73-1 - 
uvc-streamer - 1-1 - 
wireless-tools - 29-2 - 
zlib - 1.2.3-5 -

(Last edited by $p00ky on 14 Jan 2010, 08:15)

Post #2
Dogge
14 Jan 2010, 16:49

noone...

Post #4
$p00ky
16 Jan 2010, 08:02

I never compiled kernels by myself so far and thought the kmod-xxx packages were enough for that.
How can I check if the kernel was compiled with SN9C20X?

I checked on the v4l side, and I noticed this error in my "dmesg" at boot time (before plugging in the webcam):

v4l2_common: Unknown symbol i2c_attach_client
Linux video capture interface: v2.00

Also I think gspca is already enabled, because at boot time, before plugging anything in, dmesg:

usbcore: registered new interface driver ov51x
ov51x_jpeg: 1.5.9 : ov51x USB Camera Driver
usbcore: registered new interface driver gspca
gspca: gspca driver 01.00.20 registered
usbcore: registered new interface driver quickcam
usbcore: registered new interface driver uvcvideo
USB Video Class driver (SVN r261)

I don't know where the first lines from v4l2 come from, as I did not find any package providing v4l.
I'm not sure v4l is correctly configured so that's why it does not mount under /dev/v4l/xxx (/dev/v4l does not exist though) nor /dev/videoX

Is there any v4l2 support (package?) for OpenWrt Kamikaze?

My kernel is the original "Linux OpenWrt 2.6.26.8" and I think it's already loading gspca as it should.

Post #5
ccbcfan
18 Jan 2010, 16:16

i had a similar problem:


https://forum.openwrt.org/viewtopic.php?id=23225

My router is run openwrt the release of Kamikaze 8.09.2 (r18405)with luci , kernel=2.6.30.9
the opkg updata is there:
http://downloads.openwrt.org/snapshots/ … x/packages

i want to run a vimicro zc0301pl  webcam , so i install the driver for it ,it is kmod-gspca_zc3xx.ko

I try :

opkg updata
opkg install  kmod-video-gspca-zc3xx  .......   ,#ok,but it is kernel 2.6.30.10-1 .

root@Openwrt:/# lsusb
Bus 001 Device 002: ID 0ac8:301b Z-Star Microelectronics Corp. ZC0301 Webcam
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

root@Openwrt:/# dmesg | grep usb
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
usb usb1: configuration #1 chosen from 1 choice
usb 1-1: new full speed USB device using bcm63xx_ohci and address 2
usbcore: registered new interface driver usb-storage
usb 1-1: configuration #1 chosen from 1 choice

but not mount /dev/video0  ;

root@Openwrt:/# insmod /lib/modules/2.6.30.10/gspca_zc3xx.ko
gspca_zc3xx: version magic '2.6.30.10 mod_unload MIPS32_R1 32BIT ' should be '2.6.30.9 mod_unload MIPS32_R1 32BIT '
insmod: can't insert '/lib/modules/2.6.30.10/gspca_zc3xx.ko': invalid module format

root@Openwrt:/# cat /proc/version
Linux version 2.6.30.9 (yuzt@Ubuntu) (gcc version 4.3.3 (GCC) ) #3 Tue Nov 17 00:48:10 CST 2009

Now i download kmod-video-gspca-zc3xx_2.6.30.9-1_brcm63xx.ipk

root@Openwrt:/jffs# opkg install kmod-video-gspca-zc3xx_2.6.30.9-1_brcm63xx.ipk
Installing kmod-video-gspca-zc3xx (2.6.30.9-1) to root...
Collected errors:
* ERROR: Cannot satisfy the following dependencies for kmod-video-gspca-zc3xx:
         *  kernel (=2.6.30.9-1) *



How can i  install the driver for my  webcam ?

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