DVB device nodes (was: Re: Bug#265799: udev: /dev/input/* mode 0600 breaks remote control input)

[Darren Salt]

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I demand that Thomas Schmidt may or may not have written...

> * Darren Salt schrieb am 13.09.04, um 20:27 Uhr:
>> [snip]
>>> @Darren: I now tried udev out, it is very nice, but unfortunately the
>>> dvb-drivers do not support sysfs at the moment.
>>> What is the best practise to get them working? (with static devices for
>>> example) How do you manage this?
>> My device node creation script (/etc/init.d/dvb, symlinked from
>> /etc/rcS.d/S37dvb.local) is attached.

> Ah yes, this is a way, but i thought that there might be an option in udev
> to create certain devices as static devices

I'm not aware of one. BTW, that script should really be using
  cd /dev && MAKEDEV dvb
instead of that list of mknod commands.

> (or just to not delete certain devices),

Considering that /dev is (probably) a tmpfs mount...

> well when it is this way, i will probably uninstall udev again. :(

sysfs support is in dvb-kernel CVS. I've not (yet) tested it for myself.

<URL:http://linuxtv.org/cgi-bin/cvsweb.cgi/dvb-kernel/linux/Documentation/dvb/udev.txt>

I think that it's worth creating the necessary files and symlinks to allow
udev to create the device nodes - and, ideally, making sure that this gets
into sarge. This appears to be trivial, so I've done this more or less
straight from upstream documentation. The attached patch replaces my previous
patch - there are bug fixes.

> (There is also at least lirc_serial (needed for my remote), which does not
> support sysfs.)

MAKEDEV again?

>> Also, in /etc/modprobe.d/dvb:

>>   alias dvb budget_ci
>>   install budget_ci modprobe -i budget_ci && modprobe tda1004x
>>   remove budget_ci modprobe -r -i budget_ci && modprobe -r tda1004x

> Ah yes, i have something similiar for my dvb-card:

>    alias dvb dvb-ttpci
>    install dvb-ttpci /sbin/modprobe stv0299; /sbin/modprobe --ignore-install dvb-ttpci

> :)

This begins to fall apart a little for those with multiple cards. ;-)

-- 
| Darren Salt   | linux (or ds) at | nr. Ashington,
| woody, sarge, | youmustbejoking  | Northumberland
| RISC OS       | demon co uk      | Toon Army
|   <URL:http://www.youmustbejoking.demon.co.uk/> (PGP 2.6, GPG keys)

Congratulations! You have now used up another 250 hours of CPU time.

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diff -urN linuxtv-dvb-apps-1.1.0.orig/debian/dvb-utils.dirs linuxtv-dvb-a=
pps-1.1.0/debian/dvb-utils.dirs
--- linuxtv-dvb-apps-1.1.0.orig/debian/dvb-utils.dirs	2004-09-14 00:36:13=
.000000000 +0100
+++ linuxtv-dvb-apps-1.1.0/debian/dvb-utils.dirs	2004-09-13 18:41:47.0000=
00000 +0100
@@ -1,2 +1,3 @@
 usr/bin
 usr/share/doc/dvb-utils/examples/scan
+etc/udev/rules.d
diff -urN linuxtv-dvb-apps-1.1.0.orig/debian/rules linuxtv-dvb-apps-1.1.0=
/debian/rules
--- linuxtv-dvb-apps-1.1.0.orig/debian/rules	2004-09-14 00:36:13.00000000=
0 +0100
+++ linuxtv-dvb-apps-1.1.0/debian/rules	2004-09-14 00:07:03.000000000 +01=
00
@@ -48,6 +48,9 @@
 	cp -a util/av7110_loadkeys/README debian/dvb-utils/usr/share/doc/dvb-ut=
ils/README.av7110_loadkeys
 	cp -a util/scan/README debian/dvb-utils/usr/share/doc/dvb-utils/README.=
scan
 	cp -a util/szap/README debian/dvb-utils/usr/share/doc/dvb-utils/README.=
szap
+	cp -a debian/udev debian/dvb-utils/etc/
+	chmod 755 debian/dvb-utils/etc/udev/dvb-utils.sh
+	ln -s ../dvb-utils.rules debian/dvb-utils/etc/udev/rules.d/
=20
 	dh_install
=20
diff -urN linuxtv-dvb-apps-1.1.0.orig/debian/udev/dvb-utils.rules linuxtv=
-dvb-apps-1.1.0/debian/udev/dvb-utils.rules
--- linuxtv-dvb-apps-1.1.0.orig/debian/udev/dvb-utils.rules	1970-01-01 01=
:00:00.000000000 +0100
+++ linuxtv-dvb-apps-1.1.0/debian/udev/dvb-utils.rules	2004-09-14 00:30:3=
3.000000000 +0100
@@ -0,0 +1,5 @@
+# Create DVB device nodes (for dvb-kernel > 1.1.1)
+KERNEL=3D"dvb*", PROGRAM=3D"/etc/udev/dvb-utils.sh %k", NAME=3D"%c", MOD=
E=3D"0660", GROUP=3D"video"
+
+# Loosen permissions on IR input devices supplied by TV card drivers
+KERNEL=3D"event[0-9]*", PROGRAM=3D"/etc/udev/inputdev.sh %n 'dvb|av7134'=
", RESULT=3D"inputdev", NAME=3D"input/%k", MODE=3D"0640", GROUP=3D"video"=

diff -urN linuxtv-dvb-apps-1.1.0.orig/debian/udev/dvb-utils.sh linuxtv-dv=
b-apps-1.1.0/debian/udev/dvb-utils.sh
--- linuxtv-dvb-apps-1.1.0.orig/debian/udev/dvb-utils.sh	1970-01-01 01:00=
:00.000000000 +0100
+++ linuxtv-dvb-apps-1.1.0/debian/udev/dvb-utils.sh	2004-09-13 23:53:13.0=
00000000 +0100
@@ -0,0 +1,2 @@
+#! /bin/sh
+echo "$1" | sed -re 's,dvb([0-9]).([^0-9]*)([0-9]),dvb/adapter\1/\2\3,'

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