# dmesg | grep -i ivtv
ivtv: Start initialization, version 1.4.1
ivtv0: Initializing card 0
ivtv0: Autodetected Hauppauge card (cx23416 based)
ivtv 0000:01:05.0: PCI INT A -> Link[LNKA] -> GSI 19 (level, low) -> IRQ 19
ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
ivtv0: Autodetected Hauppauge WinTV PVR-150
ivtv0: Reopen i2c bus for IR-blaster support
cx25840 2-0044: cx25841-23 found @ 0x88 (ivtv i2c driver #0)
tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #0)
wm8775 2-001b: chip found @ 0x36 (ivtv i2c driver #0)
IRQ 19/ivtv0: IRQF_DISABLED is not guaranteed on shared IRQs
ivtv0: Registered device video0 for encoder MPG (4096 kB)
ivtv0: Registered device video32 for encoder YUV (2048 kB)
ivtv0: Registered device vbi0 for encoder VBI (1024 kB)
ivtv0: Registered device video24 for encoder PCM (320 kB)
ivtv0: Initialized card: Hauppauge WinTV PVR-150
ivtv1: Initializing card 1
ivtv1: Autodetected Hauppauge card (cx23416 based)
ivtv 0000:01:06.0: PCI INT A -> Link[LNKB] -> GSI 18 (level, low) -> IRQ 18
ivtv1: Unreasonably low latency timer, setting to 64 (was 32)
ivtv1: Autodetected Hauppauge WinTV PVR-250
saa7115 3-0021: saa7115 found (1f7115d0e100000) @ 0x42 (ivtv i2c driver #1)
msp3400 3-0040: MSP3445G-B8 found @ 0x80 (ivtv i2c driver #1)
tuner 3-0061: chip found @ 0xc2 (ivtv i2c driver #1)
IRQ 18/ivtv1: IRQF_DISABLED is not guaranteed on shared IRQs
ivtv1: Registered device video1 for encoder MPG (4096 kB)
ivtv1: Registered device video33 for encoder YUV (2048 kB)
ivtv1: Registered device vbi1 for encoder VBI (1024 kB)
ivtv1: Registered device video25 for encoder PCM (320 kB)
ivtv1: Initialized card: Hauppauge WinTV PVR-250
ivtv: End initialization
ivtv 0000:01:05.0: firmware: requesting v4l-cx2341x-enc.fw
ivtv 0000:01:06.0: firmware: requesting v4l-cx2341x-enc.fw
ivtv0: Loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
ivtv1: Loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
ivtv0: Encoder revision: 0x02060039
ivtv1: Encoder revision: 0x02060039