Video on Rpi0 stuff

_notes.txt

Reference before I try a new Nerves System build
---Not included, Probably not important:
  CONFIG_VIDEO_USBTV=m   (USB TV Tuners)
  CONFIG_USB_PWC_DEBUG=y (Debug support for a Phillis brand camera)
  CONFIG_USB_S2255=m (Support for what appears to be a USB card for video studios)
  BR2_PACKAGE_V4L2GRAB=y (Virtual video devices)
  BR2_PACKAGE_V4L2LOOPBACK_UTILS=y (Virtual video devices)
  BR2_PACKAGE_V4L2LOOPBACK=y (Virtual video devices)

Not included, will add:
  CONFIG_MEDIA_USB_SUPPORT=y
  CONFIG_USB_STKWEBCAM=m
  CONFIG_USB_VIDEO_CLASS=m
  CONFIG_VIDEO_ADV_DEBUG=y
  CONFIG_VIDEO_CPIA2=m
  CONFIG_USB_PWC=m
  CONFIG_USB_ZR364XX=m

Already there:
  CONFIG_VIDEO_V4L2_SUBDEV_API=y

wow.diff

diff --git a/linux-4.19.defconfig b/linux-4.19.defconfig
index 65ffd15..8b23596 100644
--- a/linux-4.19.defconfig
+++ b/linux-4.19.defconfig
@@ -198,6 +198,17 @@ CONFIG_REGULATOR_FIXED_VOLTAGE=m
 CONFIG_MEDIA_SUPPORT=m
 CONFIG_MEDIA_CAMERA_SUPPORT=y
 CONFIG_MEDIA_CONTROLLER=y
+CONFIG_VIDEO_V4L2_SUBDEV_API=y
+CONFIG_VIDEO_ADV_DEBUG=y
+CONFIG_MEDIA_USB_SUPPORT=y
+CONFIG_USB_VIDEO_CLASS=m
+CONFIG_USB_PWC=m
+CONFIG_USB_PWC_DEBUG=y
+CONFIG_VIDEO_CPIA2=m
+CONFIG_USB_ZR364XX=m
+CONFIG_USB_STKWEBCAM=m
+CONFIG_USB_S2255=m
+CONFIG_VIDEO_USBTV=m
 CONFIG_V4L_PLATFORM_DRIVERS=y
 # CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set
 CONFIG_DRM=m
diff --git a/nerves_defconfig b/nerves_defconfig
index d52a801..7ad75cc 100644
--- a/nerves_defconfig
+++ b/nerves_defconfig
@@ -36,6 +36,9 @@ BR2_PACKAGE_ALSA_UTILS=y
 BR2_PACKAGE_ALSA_UTILS_AMIXER=y
 BR2_PACKAGE_ALSA_UTILS_APLAY=y
 BR2_PACKAGE_ESPEAK=y
+BR2_PACKAGE_V4L2GRAB=y
+BR2_PACKAGE_V4L2LOOPBACK=y
+BR2_PACKAGE_V4L2LOOPBACK_UTILS=y
 BR2_PACKAGE_E2FSPROGS=y
 # BR2_PACKAGE_E2FSPROGS_FSCK is not set
 BR2_PACKAGE_LINUX_FIRMWARE=y