Re: Linux Input Layer messing with my IR remote ..

Hope this sheds some light ...

fanless ~ $ uname -a
Linux fanless 2.6.17-gentoo-r4 #1 Tue Aug 15 21:13:09 CEST 2006 x86_64 AMD
Athlon(tm) 64 X2 Dual Core Processor 3800+ GNU/Linux

fanless ~ # lsmod
Module Size Used by
nvidia 5428884 12
snd_rtctimer 3936 1
snd_seq_oss 36352 0
snd_seq_midi_event 8448 1 snd_seq_oss
snd_seq 56384 5 snd_seq_oss,snd_seq_midi_event
snd_seq_device 9872 2 snd_seq_oss,snd_seq
snd_pcm_oss 45344 0
snd_mixer_oss 18816 1 snd_pcm_oss
snd_intel8x0 36712 0
snd_ac97_codec 107928 1 snd_intel8x0
snd_ac97_bus 3008 1 snd_ac97_codec
snd_pcm 95308 3 snd_pcm_oss,snd_intel8x0,snd_ac97_codec
snd_timer 24968 3 snd_rtctimer,snd_seq,snd_pcm
snd 64296 11
snd_rtctimer,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
snd_page_alloc 11280 2 snd_intel8x0,snd_pcm
nls_iso8859_1 5568 2
nls_cp437 7296 2
vfat 14464 2
fat 55280 1 vfat
lirc_gpio 11536 0
lirc_dev 16328 1 lirc_gpio
dvb_bt8xx 17540 0
nxt6000 8132 1 dvb_bt8xx
mt352 7876 1 dvb_bt8xx
dvb_pll 14276 1 dvb_bt8xx
sp887x 8452 1 dvb_bt8xx
dst_ca 16192 1 dvb_bt8xx
dst 26948 2 dvb_bt8xx,dst_ca
bt878 12776 2 dvb_bt8xx,dst
dvb_core 86108 2 dvb_bt8xx,dst_ca
cx24110 9220 1 dvb_bt8xx
or51211 10372 1 dvb_bt8xx
lgdt330x 9116 1 dvb_bt8xx
tuner 58284 0
tvaudio 27612 0
bttv 201780 3 lirc_gpio,dvb_bt8xx,bt878
video_buf 27908 1 bttv
firmware_class 11712 4 dvb_bt8xx,sp887x,or51211,bttv
ir_common 29956 1 bttv
compat_ioctl32 9472 1 bttv
i2c_algo_bit 9672 1 bttv
v4l2_common 18048 3 tuner,bttv,compat_ioctl32
btcx_risc 5768 1 bttv
tveeprom 18064 1 bttv
videodev 11968 1 bttv
it87 25380 0
hwmon_vid 3840 1 it87
i2c_isa 6208 1 it87
forcedeth 29836 0
nfs 221680 0
lockd 67152 1 nfs
sunrpc 168712 2 nfs,lockd
ata_piix 14084 0
sata_vsc 9668 0
sata_sis 9348 0
sata_sx4 14852 0
sata_nv 11524 2
sata_via 9924 0
sata_svw 9156 0
sata_sil 11784 0
sata_promise 13636 0
libata 75224 9
ata_piix,sata_vsc,sata_sis,sata_sx4,sata_nv,sata_via,sata_svw,sata_sil,sata_promise
sbp2 24968 0
ohci1394 34376 0
ieee1394 105976 2 sbp2,ohci1394
ohci_hcd 21060 0
uhci_hcd 23960 0
usb_storage 71040 2
usbhid 42912 0
ehci_hcd 33032 0


Dances With Crows wrote:

On Tue, 29 Aug 2006 19:11:32 +0200, eb staggered into the Black Sun and
said:
With a previous kernel, I did not have this problem, and [I] don't
know where to look.

What's the output of "uname -a"? What's the output of "lsmod"?

I have an infrared remote. I can properly load the lirc_gpio module,
and link [the] lirc daemon to say, mplayer commands. The problem is
that the Linux Input Layer takes the IR signal as well, and acts as if
I was pressing some key on a multimedia keyboard [as well as sending
an lircd event].

Here is the content of /proc/bus/input/devices
[snip]
I: Bus=0001 Vendor=1461 Product=0771 Version=0001
N: Name="bttv IR (card=123)"
P: Phys=pci-0000:01:08.0/ir0
S: Sysfs=/class/input/input2
H: Handlers=kbd

This is a little strange. I certainly don't have anything like that for
my IR remote, but mine is an ATi USB remote, not a remote that's plugged
into a bttv card. There's some stuff about IR in
drivers/media/video/bttv* , but I'm not sure how it all fits in with the
input layer.

This is part of my modules.conf
bttv pll=1,1 card=1,123 tuner=3,4 bttv_gpio=0,0 dvb-bt8xx
lirc_gpio gpio_mask=0xf00f0 gpio_lock_mask=0x20 gpio_xor_mask=0xf00f0
soft_gap=0 sample_rate=10 debug=1 card=1

What could I possibly do to get rid of the Linux Input Layer (for IR,
that is ...), and let lircd alone ?

Very good question. Since it's being seen as a keyboard, the quick
hackish fix of chmodding the thing's device node won't work. I'd guess
the solution would lie in the parameters you feed to bttv, but I don't
know where to start there--possibly because I'm using 2.6.15.6 here, and
you're probably using something newer. Ah well, answer the questions
posed above, and you might get some better help.


.

Relevant Pages

  • Re: Linux Input Layer messing with my IR remote ..
    ... that the Linux Input Layer takes the IR signal as well, ... my IR remote, but mine is an ATi USB remote, not a remote that's plugged ... into a bttv card. ... What could I possibly do to get rid of the Linux Input Layer (for IR, ...
    (comp.os.linux.hardware)
  • [2.6.12-rc-bk5] Avermedia TV/Phone98 remote control problem (input layer)
    ... linux kernel 2.6.x input layer support. ... makes the remote control show under /proc/bus/input/devices: ... I compiled a 2.4.26 kernel with lirc 0.7.1-pre3 lirc-dev and lirc-gpio ... I am no expert at lirc kernel internals, nor at input layer in kernels ...
    (Linux-Kernel)