[linux-dvb] Re: Modules for Nova-T - general modules question aswell

[Simon Kilvington <s.kilvington@eris.qinetiq.com>]

Mark Howells wrote:
> I'm confused about which modules I need to load for for Nova-T (using kernel 2.4.25). I'm also confused about which modules do what.
>
> I have a number of queries and one error.
>
> 1. Once I've loaded the modules, what entries should I see in /dev/dvb/adapter0? I currently see
>     demux0
>     dvr0
>     frontend0
>     net0
>
> But I've seen many docs (eg http://www.ethics-gradient.net/myth/mythdvb.html) describing the Nova-T as supporting 
>     crw-rw-rw- 1 root root 250, 1 May 8 22:25 audio0
>     crw-rw-rw- 1 root root 250, 6 May 8 22:25 ca0
>     crw-rw-rw- 1 root root 250, 4 May 8 22:25 demux0
>     crw-rw-rw- 1 root root 250, 5 May 8 22:25 dvr0
>     crw-rw-rw- 1 root root 250, 3 May 8 22:25 frontend0
>     crw-rw-rw- 1 root root 250, 7 May 8 22:25 net0
>     crw-rw-rw- 1 root root 250, 8 May 8 22:25 osd0
>     crw-rw-rw- 1 root root 250, 0 May 8 22:25 video0
>
> Here's what I am currently loading (or trying to load)
>     modprobe input
>     modprobe evdev
>     modprobe videodev
>     insmod ./v4l1-compat.o
>     insmod ./v4l2-common.o
>     insmod ./video-buf.o
>     insmod ./dvb-core.o
>     insmod ./ves1820.o
>     insmod ./tda1004x.o
>     insmod ./grundig_29504-401.o
>     insmod ./saa7146.o
>     insmod ./saa7146_vv.o
>     insmod ./ttpci-eeprom.o
>     insmod ./dvb-ttpci.o ### FAILS
>     insmod ./dvb-ttpci-budget.o ### FAILS
>     insmod ./dvb-ttpci-budget-av.o ### FAILS
>     insmod ./dvb-ttpci-budget-ci.o
>
> So, two issues. Firstly, I believe the dvb-ttpci* modules should be loaded but they generate the following error
>
>     Inserting DVB modules into kernel./dvb-ttpci.o: init_module: No such device
>     Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters.
>     You may find more information in syslog or the output from dmesg
>
> And dmesg generates
>     Linux video capture interface: v1.00
>     saa7146: register extension 'dvb'.
>     saa7146: register extension 'budget dvb'.
>     saa7146: register extension 'budget_ci dvb'.
>     saa7146_core: found saa7146 @ mem de966000 (revision 1, irq 10) (0x13c2,0x1011).
>     DVB: registering new adapter (TT-Budget/WinTV-NOVA-T PCI).
>     tda1004x: Detected Philips TDA10045H.
>     tda1004x: Detected Philips TD1316 tuner.
>     DVB: registering frontend 0:0 (Philips TDA10045H)...
>     TT-Budget/WinTV-NOVA-T PCI adapter 0 has MAC addr = 00:d0:5c:23:e6:43
>     saa7146: register extension 'budget dvb /w video in'.
>
> Presumably there's something missing from the kernel to prevent the dvb-ttpci* modules from loading, but I can't for the life of me find out what it is.
>
> And secondly, I do appear to need the ves1820.o module. I wasn't aware that this was associated with the Nova-T.
>
> The card works - the scan and tzap and dvbstream utils work, but mythtv doesn't seem to like it as it is unable to read any video data from the card - I don't have access to the machine at the moment to provide details of what goes wrong.
>
> Any help concerning the above would be appreciated. Also, a 'Beginners Module Guide' would be useful to help new users get started - I'm happy to try and draw one up if I can get my head around what's going on!
>
> Cheers
>
> Mark
I have a Nova-T card and a 2.4.25 kernel, these are the modules I load:

# /etc/modules: kernel modules to load at boot time.
#
# This file should contain the names of kernel modules that are
# to be loaded at boot time, one per line.  Comments begin with
# a `#', and everything on the line after them are ignored.

scsi_hostadapter

# make sure input stuff is there for IR remote controls
input
evdev
hid
# video4linux for av7110 based "full featured" cards
videodev
v4l1-compat
v4l2-common
video-buf
# DVB core
#dvb-core dvb_shutdown_timeout=0
dvb-core
# frontend drivers
tda1004x
# saa7146 based siemens/technotrend/hauppauge cards
saa7146
saa7146_vv
ttpci-eeprom
dvb-ttpci-budget-ci


and these are the devices I have under /dev/dvb/adapter0/

crw-rw-rw-    1 root     root     250,   4 Jan  1  1970 demux0
crw-rw-rw-    1 root     root     250,   5 Jan  1  1970 dvr0
crw-rw-rw-    1 root     root     250,   3 Jan  1  1970 frontend0
crw-rw-rw-    1 root     root     250,   7 Jan  1  1970 net0



MythTV works fine

--
Simon Kilvington, s.kilvington@eris.qinetiq.com