[Mod] First commit

package/v4l2loopback/Config.in

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+config BR2_PACKAGE_V4L2LOOPBACK
+	bool "v4l2loopback"
+	depends on BR2_LINUX_KERNEL
+	help
+	  This module allows you to create "virtual video devices".
+	  Normal (v4l2) applications will read these devices as if
+	  they were ordinary video devices, but the video will not be
+	  read from e.g. a capture card but instead it is generated by
+	  another application.
+
+	  https://github.com/umlaeute/v4l2loopback
+
+if BR2_PACKAGE_V4L2LOOPBACK
+
+config BR2_PACKAGE_V4L2LOOPBACK_UTILS
+	bool "utils"
+	depends on BR2_USE_MMU # bash
+	select BR2_PACKAGE_BUSYBOX_SHOW_OTHERS # bash
+	select BR2_PACKAGE_BASH # runtime dependency
+	select BR2_PACKAGE_SUDO # runtime dependency
+	help
+	  Install applications to interact with v4l2-loopback devices
+	  ("virtual video devices").  Currently there is only a single
+	  command line utility: v4l2loopback-ctl: tool to set
+	  framerate, format and timeout image.
+
+endif
+
+comment "v4l2loopback needs a Linux kernel to be built"
+	depends on !BR2_LINUX_KERNEL

package/v4l2loopback/v4l2loopback.hash

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+# Locally calculated
+sha256  e0782b8abe8f2235e2734f725dc1533a0729e674c4b7834921ade43b9f04939b  v4l2loopback-0.12.7.tar.gz
+sha256  8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  COPYING

package/v4l2loopback/v4l2loopback.mk

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+################################################################################
+#
+# v4l2loopback
+#
+################################################################################
+
+V4L2LOOPBACK_VERSION = 0.12.7
+V4L2LOOPBACK_SITE = $(call github,umlaeute,v4l2loopback,v$(V4L2LOOPBACK_VERSION))
+V4L2LOOPBACK_LICENSE = GPL-2.0+
+V4L2LOOPBACK_LICENSE_FILES = COPYING
+V4L2LOOPBACK_CPE_ID_VENDOR = v4l2loopback_project
+V4L2LOOPBACK_CPE_ID_PREFIX = cpe:2.3:o
+
+ifeq ($(BR2_PACKAGE_V4L2LOOPBACK_UTILS),y)
+define V4L2LOOPBACK_INSTALL_TARGET_CMDS
+	$(INSTALL) -D -m 0755 $(@D)/utils/v4l2loopback-ctl $(TARGET_DIR)/usr/bin/v4l2loopback-ctl
+endef
+endif
+
+# CONFIG_MEDIA_SUPPORT depends on CONFIG_HAS_IOMEM, which is only
+# available when CONFIG_PCI=y on S390. CONFIG_VIDEO_DEV needs
+# CONFIG_I2C since Linux 5.18.
+define V4L2LOOPBACK_LINUX_CONFIG_FIXUPS
+	$(if $(BR2_s390x),$(call KCONFIG_ENABLE_OPT,CONFIG_PCI))
+	$(call KCONFIG_ENABLE_OPT,CONFIG_MEDIA_SUPPORT)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_I2C)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_VIDEO_DEV)
+endef
+
+$(eval $(kernel-module))
+$(eval $(generic-package))