How to capture infrared stream from webcam using ffmpeg?

I'm able to capture from my webcam using ffmpeg, but it's real color. But my webcam is advertised as having IR capability. How do I access this?

When I run ffmpeg -f v4l2 -list_formats all -i /dev/video0 I get this output:

Compressed:       mjpeg :          Motion-JPEG : 1280x720 640x360 640x480 848x480 960x540
Raw       :     yuyv422 :           YUYV 4:2:2 : 160x120 320x180 320x240 424x240 640x360 640x480

The camera specs are given as video: 1280x720 at 30 fps, IR Video: 340x340 at 60 fps

Also, here is the output of v4l2-ctl --list-devices:

Integrated_Webcam_HD: Integrate (usb-0000:00:14.0-11):
    /dev/video0
    /dev/video1

I thought maybe the Raw stream would contain the Infrared video stream, but when I run this:

ffplay -input_format yuyv422 -video_size 320x240 -i /dev/video0

The output looks identical to the 1280x720 output except smaller.

I also ran ffmpeg -f v4l2 -list_formats all -i /dev/video1 and got this output:

Raw       : Unsupported : 00000032-0002-0010-8000-00aa003 : 640x360

But I don't seem to be able to play anything from this device, I get:

Cannot find a proper format for codec 'none' (id 0), pixel format 'none' (id -1)
Assertion *codec_id != AV_CODEC_ID_NONE failed at src/libavdevice/v4l2.c:811

How do I capture infrared video from the webcam?