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Date: Wed, 22 Jul 2009 22:22:55 +0200 From: Maróy Ákos <akos@...oy.hu> To: linux-kernel@...r.kernel.org Subject: bttv driver sending bogus keyboard input for IR interface Hi, I'm having the issue that the bttv driver sends a lot of bogus keyboard events via its IR interface, even though no keys are pressed on the IR remote. This is so problematic that these events happen even throughout the boot process, and one can't even log in on the console, as these phantom keypresses overwhelm everything. the only workaround it to blacklist the bttv module, so that it is not loaded during boot. This is on ubuntu 9.04, kernel 2.6.28, using an AverMedia TVPhone98 card how could I solve this issue, and maybe make the IR remote even work properly? Akos some additional info: # lsmod Module Size Used by tuner_simple 22544 0 tuner_types 22400 1 tuner_simple tuner 32836 0 tvaudio 31036 0 videodev 41600 2 tuner,tvaudio v4l1_compat 21764 1 videodev ir_common 52228 0 compat_ioctl32 9344 0 i2c_algo_bit 14084 0 v4l2_common 20992 2 tuner,tvaudio videobuf_dma_sg 20484 0 videobuf_core 26500 1 videobuf_dma_sg btcx_risc 13064 0 tveeprom 20100 0 binfmt_misc 16776 1 bridge 56340 0 stp 10500 1 bridge bnep 20224 2 input_polldev 11912 0 video 25360 0 output 11008 1 video reiserfs 236288 1 aes_i586 15744 1 aes_generic 35880 1 aes_i586 cbc 11648 1 dm_crypt 20996 1 w83627hf 31632 0 w83781d 36264 0 hwmon_vid 11264 2 w83627hf,w83781d lp 17156 0 snd_intel8x0 37532 3 snd_ice1712 67876 1 snd_ice17xx_ak4xxx 11648 1 snd_ice1712 snd_ak4xxx_adda 16256 2 snd_ice1712,snd_ice17xx_ak4xxx snd_cs8427 16000 1 snd_ice1712 snd_ac97_codec 112292 2 snd_intel8x0,snd_ice1712 snd_pcm_oss 46336 0 snd_mixer_oss 22656 1 snd_pcm_oss snd_pcm 82948 5 snd_intel8x0,snd_ice1712,snd_ac97_codec,snd_pcm_oss ac97_bus 9856 1 snd_ac97_codec snd_i2c 13312 2 snd_ice1712,snd_cs8427 snd_mpu401_uart 15104 1 snd_ice1712 snd_seq_dummy 10756 0 snd_seq_oss 37760 0 snd_seq_midi 14336 0 snd_rawmidi 29696 2 snd_mpu401_uart,snd_seq_midi snd_seq_midi_event 15104 2 snd_seq_oss,snd_seq_midi ppdev 15620 0 snd_seq 56880 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event snd_timer 29704 2 snd_pcm,snd_seq snd_seq_device 14988 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq psmouse 61972 0 pcspkr 10496 0 serio_raw 13316 0 snd 62628 22 snd_intel8x0,snd_ice1712,snd_ak4xxx_adda,snd_cs8427,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_i2c,snd_mpu401_uart,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device snd_page_alloc 16904 2 snd_intel8x0,snd_pcm soundcore 15200 1 snd iTCO_wdt 19108 0 iTCO_vendor_support 11652 1 iTCO_wdt nvidia 4712596 42 intel_agp 34108 1 agpgart 42696 2 nvidia,intel_agp parport_pc 40100 1 parport 42220 3 lp,ppdev,parport_pc shpchp 40212 0 usbhid 42336 1 skge 48272 0 floppy 64324 0 raid10 30336 0 raid456 134928 1 async_xor 11392 1 raid456 async_memcpy 10112 1 raid456 async_tx 15184 3 raid456,async_xor,async_memcpy xor 24072 2 raid456,async_xor raid1 29952 0 raid0 15360 0 multipath 15232 0 linear 13312 0 fbcon 46112 0 tileblit 10752 1 fbcon font 16384 1 fbcon bitblit 13824 1 fbcon softcursor 9984 1 bitblit # cat /proc/bus/input/devices I: Bus=0019 Vendor=0000 Product=0002 Version=0000 N: Name="Power Button (FF)" P: Phys=LNXPWRBN/button/input0 S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 U: Uniq= H: Handlers=kbd event0 B: EV=3 B: KEY=100000 0 0 0 I: Bus=0019 Vendor=0000 Product=0001 Version=0000 N: Name="Power Button (CM)" P: Phys=PNP0C0C/button/input0 S: Sysfs=/devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input1 U: Uniq= H: Handlers=kbd event1 B: EV=3 B: KEY=100000 0 0 0 I: Bus=0017 Vendor=0001 Product=0001 Version=0100 N: Name="Macintosh mouse button emulation" P: Phys= S: Sysfs=/devices/virtual/input/input2 U: Uniq= H: Handlers=mouse0 event2 B: EV=7 B: KEY=70000 0 0 0 0 0 0 0 0 B: REL=3 I: Bus=0011 Vendor=0001 Product=0001 Version=ab41 N: Name="AT Translated Set 2 keyboard" P: Phys=isa0060/serio0/input0 S: Sysfs=/devices/platform/i8042/serio0/input/input3 U: Uniq= H: Handlers=kbd event3 B: EV=120013 B: KEY=4 2000000 3803078 f800d001 feffffdf ffefffff ffffffff fffffffe B: MSC=10 B: LED=7 I: Bus=0010 Vendor=001f Product=0001 Version=0100 N: Name="PC Speaker" P: Phys=isa0061/input0 S: Sysfs=/devices/platform/pcspkr/input/input4 U: Uniq= H: Handlers=kbd event4 B: EV=40001 B: SND=6 I: Bus=0011 Vendor=0002 Product=0001 Version=0001 N: Name="PS/2 Logitech Mouse" P: Phys=isa0060/serio1/input0 S: Sysfs=/devices/platform/i8042/serio1/input/input5 U: Uniq= H: Handlers=mouse1 event5 B: EV=7 B: KEY=70000 0 0 0 0 0 0 0 0 B: REL=3 # cat /proc/bus/input/handlers N: Number=0 Name=kbd N: Number=1 Name=mousedev Minor=32 N: Number=2 Name=evdev Minor=64 syslog when loading the bttv module: Jul 22 07:41:33 tower kernel: [ 3796.727018] bttv: driver version 0.9.17 loaded Jul 22 07:41:33 tower kernel: [ 3796.727023] bttv: using 8 buffers with 2080k (520 pages) each for capture Jul 22 07:41:33 tower kernel: [ 3796.727088] bttv: Bt8xx card found (0). Jul 22 07:41:33 tower kernel: [ 3796.727102] bttv0: Bt878 (rev 2) at 0000:02:0d.0, irq: 21, latency: 64, mmio: 0xf7efe000 Jul 22 07:41:33 tower kernel: [ 3796.727427] bttv0: detected: AVerMedia TVPhone98 [card=41], PCI subsystem ID is 1461:0001 Jul 22 07:41:33 tower kernel: [ 3796.727432] bttv0: using: AVerMedia TVPhone 98 [card=41,autodetected] Jul 22 07:41:33 tower kernel: [ 3796.730749] tvaudio' 2-0042: tda9840 found @ 0x84 (bt878 #0 [sw]) Jul 22 07:41:33 tower kernel: [ 3796.739572] tuner' 2-0061: chip found @ 0xc2 (bt878 #0 [sw]) Jul 22 07:41:33 tower kernel: [ 3796.781013] bttv0: Avermedia eeprom[0x0a97]: tuner=5 radio:yes remote control:yes Jul 22 07:41:33 tower kernel: [ 3796.781021] bttv0: tuner type=5 Jul 22 07:41:33 tower kernel: [ 3796.788903] tuner-simple 2-0061: creating new instance Jul 22 07:41:33 tower kernel: [ 3796.788908] tuner-simple 2-0061: type set to 5 (Philips PAL_BG (FI1216 and compatibles)) Jul 22 07:41:33 tower kernel: [ 3796.789530] bttv0: i2c: checking for MSP34xx @ 0x80... not found Jul 22 07:41:33 tower kernel: [ 3796.790119] bttv0: i2c: checking for TDA9875 @ 0xb0... not found Jul 22 07:41:33 tower kernel: [ 3796.790706] bttv0: i2c: checking for TDA7432 @ 0x8a... not found Jul 22 07:41:33 tower kernel: [ 3796.795548] bttv0: registered device video0 Jul 22 07:41:33 tower kernel: [ 3796.795581] bttv0: registered device vbi0 Jul 22 07:41:33 tower kernel: [ 3796.795615] bttv0: registered device radio0 Jul 22 07:41:33 tower kernel: [ 3796.796642] bttv0: PLL: 28636363 => 35468950 . ok Jul 22 07:41:33 tower kernel: [ 3796.812739] input: bttv IR (card=41) as /devices/pci0000:00/0000:00:1e.0/0000:02:0d.0/input/input7 -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@...hat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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