tw68000

[Tony IBM-MAIN <v1i9v6a6@gmail.com>]

Hi,

This is my first post on Majorodomo so please excuse any misdemeanor.

I have been running a CCTV system under Linux, lubuntu 12.10 for 3 
years. I use 6 analog cameras attached to a techwell 6800 card. I use 
package motion 3.2.12-3.2.

02:04.0 Multimedia video controller: Techwell Inc. TW6816 multimedia 
video controller (rev 10)
02:04.1 Multimedia video controller: Techwell Inc. TW6816 multimedia 
video controller (rev 10)
02:04.2 Multimedia video controller: Techwell Inc. TW6816 multimedia 
video controller (rev 10)
02:04.3 Multimedia video controller: Techwell Inc. TW6816 multimedia 
video controller (rev 10)
02:04.4 Multimedia controller: Techwell Inc. Device 6814 (rev 10)
02:04.5 Multimedia controller: Techwell Inc. Device 6815 (rev 10)
02:04.6 Multimedia controller: Techwell Inc. Device 6816 (rev 10)
02:04.7 Multimedia controller: Techwell Inc. Device 6817 (rev 10)
02:05.0 Multimedia video controller: Techwell Inc. TW6816 multimedia 
video controller (rev 10)
02:05.1 Multimedia video controller: Techwell Inc. TW6816 multimedia 
video controller (rev 10)
02:05.2 Multimedia video controller: Techwell Inc. TW6816 multimedia 
video controller (rev 10)
02:05.3 Multimedia video controller: Techwell Inc. TW6816 multimedia 
video controller (rev 10)
02:05.4 Multimedia controller: Techwell Inc. Device 6814 (rev 10)
02:05.5 Multimedia controller: Techwell Inc. Device 6815 (rev 10)
02:05.6 Multimedia controller: Techwell Inc. Device 6816 (rev 10)
02:05.7 Multimedia controller: Techwell Inc. Device 6817 (rev 10)

I have been using the TW68-v2 driver from github. The system has run 
flawlessly for three years, for months at a time without reboot.

For the past 2 years I have been trying to upgrade to a later version of 
lubuntu with no luck. I have never been able to compile the driver under 
later versions on lubuntu. Too many errors and attempts to list here.

I thought my luck had changed with Linux kernel 3.18 and above. TW68 now 
included. But it does work correctly. I am now trying 3.19 kernel, no 
change. So I tried the version on linux-media. I still have the same 
problems.

Before I go into details of the error I have some question about 
confirming I really am running the latest and greatest version of tw68. 
I would hate my first post to be a user error.

How do i check I am running the right version of tw68. Here's my attempt 
to validate what is running.

tony@AJS2:~$ lsmod
Module                  Size  Used by
unix_diag              16384  0
tcp_diag               16384  0
inet_diag              20480  1 tcp_diag
rfcomm                 69632  0
bnep                   20480  2
bluetooth             491520  10 bnep,rfcomm
binfmt_misc            20480  1
snd_hda_codec_realtek    86016  1
snd_hda_codec_generic    69632  1 snd_hda_codec_realtek
ppdev                  20480  0
joydev                 20480  0
nouveau              1368064  2
kvm                   479232  0
mxm_wmi                16384  1 nouveau
wmi                    20480  2 mxm_wmi,nouveau
serio_raw              16384  0
snd_hda_intel          36864  0
snd_hda_controller     32768  1 snd_hda_intel
snd_hda_codec         143360  4 
snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hwdep              20480  1 snd_hda_codec
k10temp                16384  0
video                  20480  1 nouveau
ttm                    94208  1 nouveau
drm_kms_helper        126976  1 nouveau
edac_core              53248  0
edac_mce_amd           24576  0
drm                   344064  5 ttm,drm_kms_helper,nouveau
snd_pcm               106496  3 
snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_seq_midi           16384  0
snd_seq_midi_event     16384  1 snd_seq_midi
i2c_algo_bit           16384  1 nouveau
snd_rawmidi            32768  1 snd_seq_midi
snd_seq                65536  2 snd_seq_midi_event,snd_seq_midi
shpchp                 40960  0
snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer              32768  2 snd_pcm,snd_seq
8250_fintek            16384  0
snd                    86016  10 
snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
parport_pc             32768  1
mac_hid                16384  0
soundcore              16384  2 snd,snd_hda_codec
i2c_nforce2            16384  0
tw68                   28672  4
videobuf2_dma_sg       20480  1 tw68
videobuf2_memops       16384  1 videobuf2_dma_sg
videobuf2_core         53248  1 tw68
v4l2_common            16384  2 tw68,videobuf2_core
videodev              159744  7 tw68,v4l2_common,videobuf2_core
media                  24576  1 videodev
lp                     20480  0
parport                45056  3 lp,ppdev,parport_pc
hid_generic            16384  0
usbhid                 53248  0
hid                   110592  2 hid_generic,usbhid
pata_acpi              16384  0
forcedeth              69632  0
sata_nv                28672  6
pata_amd               20480  2


tony@AJS2:~$ sudo modinfo tw68
filename: 
/lib/modules/3.19.0-49-generic/kernel/drivers/media/pci/tw68/tw68.ko
license:        GPL
author:         Hans Verkuil <hverkuil@xs4all.nl>
author:         William M. Brack
description:    v4l2 driver module for tw6800 based video capture cards
srcversion:     FB3C913977198E340B58A2E
depends: videobuf2-core,videodev,videobuf2-dma-sg,v4l2-common
intree:         Y
vermagic:       3.19.0-49-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key: A9:32:DC:23:78:95:A4:4D:39:59:BF:91:A3:56:6A:20:EE:21:1F:37
sig_hashalgo:   sha512
parm:           latency:pci latency timer (int)
parm:           video_nr:video device number (array of int)
parm:           card:card type (array of int)

tony@AJS2:~$ sudo find / -name tw68.ko -ls
2107490  848 -rw-rw-r--   1 tony     tony       864803 Feb  5 22:06 
/home/tony/media_build/v4l/tw68.ko
1050468   44 -rw-r--r--   1 root     root        43856 Feb  5 22:12 
/lib/modules/3.13.0-74-generic/kernel/drivers/media/pci/tw68/tw68.ko
1314223   44 -rw-r--r--   1 root     root        43564 Jan 22 15:27 
/lib/modules/3.19.0-49-generic/kernel/drivers/media/pci/tw68/tw68.ko


tony@AJS2:~$ sudo find / -name tw68 -ls
  18134    0 drwxr-xr-x   2 root     root            0 Feb 14 18:46 
/sys/bus/pci/drivers/tw68
  18098    0 drwxr-xr-x   7 root     root            0 Feb 14 17:02 
/sys/module/tw68
  18111    0 lrwxrwxrwx   1 root     root            0 Feb 14 19:31 
/sys/module/v4l2_common/holders/tw68 -> ../../tw68
  18113    0 lrwxrwxrwx   1 root     root            0 Feb 14 19:31 
/sys/module/videobuf2_dma_sg/holders/tw68 -> ../../tw68
  18114    0 lrwxrwxrwx   1 root     root            0 Feb 14 19:31 
/sys/module/videobuf2_core/holders/tw68 -> ../../tw68
  18112    0 lrwxrwxrwx   1 root     root            0 Feb 14 19:31 
/sys/module/videodev/holders/tw68 -> ../../tw68
2097903    4 drwxrwxr-x   2 tony     tony         4096 Feb  5 21:44 
/home/tony/media_build/linux/drivers/media/pci/tw68
1050464    4 drwxr-xr-x   2 root     root         4096 Feb  5 22:12 
/lib/modules/3.13.0-74-generic/kernel/drivers/media/pci/tw68
1314222    4 drwxr-xr-x   2 root     root         4096 Feb  8 19:54 
/lib/modules/3.19.0-49-generic/kernel/drivers/media/pci/tw68
1317661    4 drwxr-xr-x   2 root     root         4096 Feb  8 19:54 
/usr/src/linux-headers-3.19.0-49/drivers/media/pci/tw68
tony@AJS2:~$

Why is the size of the module reported in lsmod different from what is 
in /lib/modules......

Can I be sure I am running the Hans Verkuil, William M. Brack version 
rather than version rather that any supplied with 3.19 kernel.

Once i have eliminated a user error I post details of the problem I have.

Thanks for reading this and hope you can help,

Tony.