| title: | geovision gv250 video capture card |
|
hello everyone,
i just got geovision gv250 card (with only 1 composite video input),
which is based around bt878 chipset. i tried to install it in same
fashion as my previous capture card (no name, based around bt848
chipset), by compiling i2c, v4l, and bt848 drivers as modules (there
is no bt878 driver available in kernel, so i used existing one, named
bt848). after everything goes fine, loading bttv module goes fine
also, xawtv -c /dev/video0 reports no errors at all, but it doesnt
show picture from camera on any channel (television, composite1,
s-video, composite3). just as a side note, this procedure worked like
a charm on another, bt848-based card, where changing those "channels"
would actually change physical video input (cam1, cam2...). just to
prove i wasnt right when i thought the card or camera isnt working,
i installed same card and same cam into another box, which runs under
windows xp, using original geovision software, and it all worked...
also, i tried googling for similar topics, and it seems like this
(cards from geovision) are used very rarely... geovision doesnt even
mention linux on their pages ;)
now some more technical details.
===================================
uname -r output
----------------------------------------
2.6.10-gentoo-r6
===================================
lspci -v (irrelevant info stripped out)
----------------------------------------
0000:00:07.4 SMBus: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
Subsystem: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
Flags: medium devsel, IRQ 9
Capabilities: [68] Power Management version 2
0000:00:07.5 Multimedia audio controller: VIA Technologies, Inc.
VT82C686 AC97 Audio Controller (rev 50)
Subsystem: Giga-byte Technology: Unknown device a002
Flags: medium devsel, IRQ 12
I/O ports at e000
I/O ports at e400 [size=4]
I/O ports at e800 [size=4]
Capabilities: [c0] Power Management version 2
0000:00:0a.0 Multimedia video controller: Brooktree Corporation Bt878
Video Capture (rev 11)
Flags: bus master, medium devsel, latency 32, IRQ 12
Memory at ef103000 (32-bit, prefetchable)
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
0000:00:0a.1 Multimedia controller: Brooktree Corporation Bt878 Audio
Capture (rev 11)
Flags: bus master, medium devsel, latency 32, IRQ 12
Memory at ef100000 (32-bit, prefetchable)
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
0000:01:05.0 VGA compatible controller: nVidia Corporation NV18
[GeForce4 MX 4000 AGP 8x] (rev a4) (prog-if 00 [VGA])
Flags: bus master, 66Mhz, medium devsel, latency 248, IRQ 10
Memory at ec000000 (32-bit, non-prefetchable)
Memory at e0000000 (32-bit, prefetchable) [size=128M]
Capabilities: [60] Power Management version 2
Capabilities: [44] AGP version 3.0
===================================
xawtv -hwscan
----------------------------------------
This is xawtv-3.94, running on Linux/i686 (2.6.10-gentoo-r6)
looking for available devices
port 105-105
type : Xvideo, image scaler
name : NV17 Video Overlay
port 106-106
type : Xvideo, image scaler
name : NV17 Video Texture
port 107-138
type : Xvideo, image scaler
name : NV05 Video Blitter
port 139-139 [ -xvport 139 ]
type : Xvideo, video overlay
name : NVIDIA Video Interface Port
/dev/v4l/video0: OK [ -device /dev/v4l/video0 ]
type : v4l2
name : BT878 video ( *** UNKNOWN/GENER
flags: overlay capture tuner
===================================
lsmod
----------------------------------------
snd_pcm_oss 47972 -
snd_mixer_oss 17100 -
bttv 145360 -
video_buf 17104 -
firmware_class 7180 -
i2c_algo_bit 8692 -
v4l2_common 4492 -
btcx_risc 3636 -
videodev 6912 -
snd_via82xx 22368 -
snd_ac97_codec 72448 -
snd_pcm 83848 -
snd_timer 20688 -
snd_page_alloc 7280 -
snd_mpu401_uart 5964 -
snd_rawmidi 19232 -
button 4668 -
nvidia 3463708 -
amd_k7_agp 5496 -
agpgart 27784 -
usbhid 23084 -
uhci_hcd 29852 -
=================================================
i can send more info, if someone thinks i dropped something important out.
thanks!
Boris
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