# Audio subset mainly include functions:
# - asls tools
# - libmad to play mp3
BR2_PACKAGE_ALSA_UTILS=y
BR2_PACKAGE_ALSA_UTILS_ALSACONF=y
BR2_PACKAGE_ALSA_UTILS_AMIXER=y
BR2_PACKAGE_ALSA_UTILS_APLAY=y
BR2_PACKAGE_ALSA_PLUGINS=y
BR2_PACKAGE_LIBMAD=y
BR2_PACKAGE_ALSA_UCM_CONF=y
BR2_PACKAGE_ROCKCHIP_ALSA_CONFIG=y
# Support ADPCM format audio with gstreamer
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_ADPCMDEC=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_ADPCMENC=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_FAAD=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_MPG123=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_SOUPHTTPSRC=y
BR2_PACKAGE_CA_CERTIFICATES=y
BR2_PACKAGE_LIBSOUP_SSL=y
# linux custom kernel at least 4.4.x
BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_4=y
BR2_LINUX_KERNEL_CUSTOM_LOCAL=y
BR2_LINUX_KERNEL_CUSTOM_LOCAL_LOCATION="$(TOPDIR)/../kernel"
BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES="board/rockchip/common/base/busybox.fragment"
# base subset is the basic subset of all rootfs, ramdisk.
# - auto resize ext2 fs
BR2_TARGET_ROOTFS_EXT2_SIZE="AUTO"
# - use glibc as the basic libc
BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
# - we use buildroot toolcharn here, may change to custom toolchain in the feature
BR2_TOOLCHAIN_BUILDROOT_CXX=y
# - the basic fs-overlay, will copy to rootfs after all package built
# - the post build script will be excuted after all fs-overlay copyed
BR2_ROOTFS_POST_BUILD_SCRIPT="../device/rockchip/common/post-build.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_DEFCONFIG)"
# - specify this is rockchip package
BR2_PACKAGE_ROCKCHIP=y
# - we need to support various rootfs, cpio for ramdisk, ext2/4 for large system, squashfs for small system
BR2_TARGET_ROOTFS_CPIO=y
BR2_TARGET_ROOTFS_CPIO_GZIP=y
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_4=y
BR2_TARGET_ROOTFS_SQUASHFS=y
# - script for rockchip linux demo and debug
BR2_PACKAGE_RKSCRIPT=y
# extra base subset is the basic subset of all rootfs, ramdisk.
# - we have to use eudev, because wayland need udev support
BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
# - vensor storage tool is used to r/w SN, wifi/bt/lan mac
BR2_PACKAGE_VENDOR_STORAGE=y
# - usb device package used to init and config udc like adb and usb mass storage
BR2_PACKAGE_USBDEVICE=y
# - usbmount used to mount usb disk to /media/ when it plug in
BR2_PACKAGE_USBMOUNT=y
# - input event daemon used to handle key event, ie. power on/off system
BR2_PACKAGE_INPUT_EVENT_DAEMON=y
# - upower used to monitor the power state of system
BR2_PACKAGE_UPOWER=y
# - pm utils used to suspend/resume system
BR2_PACKAGE_PM_UTILS=y
# - we need to use fsck and resize2fs to check and extend ext2/4 file system when the first time system boot up
BR2_PACKAGE_E2FSPROGS=y
BR2_PACKAGE_E2FSPROGS_FSCK=y
BR2_PACKAGE_E2FSPROGS_RESIZE2FS=y
# - we need to use dostool, mkfs.fat to format fat file system when the first time system boot up
BR2_PACKAGE_DOSFSTOOLS=y
BR2_PACKAGE_DOSFSTOOLS_MKFS_FAT=y
# - we need adb as the basic tool
BR2_PACKAGE_ANDROID_TOOLS=y
# - update tool is a command used to write factory reset or ota update command to /misc, then reboot system
# - after that, uboot will read command from /misc and boot up recovery image
BR2_PACKAGE_UPDATE=y
# benchmark subset collect benchmark tools
# - glmark2 used to benchmark gpu opengl es
BR2_PACKAGE_GLMARK2=y
# - whetstone is used to benchmark cpu's floatint point performance
BR2_PACKAGE_WHETSTONE=y
# - dhrystone is a benchmark used to benchmark cpu's integer performance
BR2_PACKAGE_DHRYSTONE=y
# - lmbench is used to benchmark memory bandwidth
BR2_PACKAGE_LMBENCH=y
# - unixbench can benchmark cpu, ram, disk etc
BR2_PACKAGE_UNIXBENCH=y
# - iperf is a benchmark tool used to measure bandwidth on IP networks
BR2_PACKAGE_IPERF=y
BR2_PACKAGE_RKWIFIBT=y
BR2_PACKAGE_BLUEZ_ALSA=y
BR2_PACKAGE_BLUEZ_ALSA_HCITOP=y
BR2_PACKAGE_BLUEZ5_UTILS=y
BR2_PACKAGE_BLUEZ5_UTILS_OBEX=y
BR2_PACKAGE_BLUEZ5_UTILS_CLIENT=y
BR2_PACKAGE_BLUEZ5_UTILS_GATTTOOL=y
BR2_PACKAGE_BLUEZ5_UTILS_EXPERIMENTAL=y
BR2_PACKAGE_BLUEZ5_PLUGINS_SIXAXIS=y
# libv4l and its utils for v4l2 devices
BR2_PACKAGE_LIBV4L=y
BR2_PACKAGE_LIBV4L_UTILS=y
BR2_PACKAGE_CAMERA_ENGINE=y
# Elements used to communicate with camera applications
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_APP=y
# Convert audio to different formats
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_AUDIORATE=y
# Creates audio test signals of given frequency and volume
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_AUDIOTESTSRC=y
# various encoding-related elements
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_ENCODING=y
# Adjusts video frames
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_VIDEORATE=y
# ogg stream manipulation (info about ogg: http://xiph.org)
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_OGG=y
# Theora plugin library
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_THEORA=y
# Vorbis plugin library
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_VORBIS=y
# JPeg plugin library
BR2_PACKAGE_GST1_PLUGINS_GOOD_JPEG=y
# PNG plugin library
BR2_PACKAGE_GST1_PLUGINS_GOOD_PNG=y
# adds an alpha channel to video - constant or via chroma-keyin
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_ALPHA=y
# APEv1/2 tag reader
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_APETAG=y
# parses au streams
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_AUPARSE=y
# Demux ID3v1 and ID3v2 tags from a file
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_ID3DEMUX=y
# Reads/Writes buffers from/to sequentially named files
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_MULTIFILE=y
# Real-time protocol plugins
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_RTP=y
# RTP session management plugin librar
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_RTPMANAGER=y
# transfer data via RTSP
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_RTSP=y
# resizes a video by adding borders or cropping
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_VIDEOBOX=y
# Crops video into a user-defined region
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_VIDEOCROP=y
# Video filters plugin
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_VIDEOFILTER=y
# Video mixer
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_VIDEOMIXER=y
# Take image snapshots and record movies from camera
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_CAMERABIN2=y
# MPEG TS demuxer
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_MPEGTSDEMUX=y
# MPEG TS muxer
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_MPEGTSMUX=y
# MPEG-PS muxer
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_MPEGPSMUX=y
# V4L2 plugin of gstreamer
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_V4L2=y
# debug subset is all the debug tools we used
# - evtest used to debug input event like touch panel, key, mouse, etc
BR2_PACKAGE_EVTEST=y
# - lrzsz used to transfer file between device and secure crt
BR2_PACKAGE_LRZSZ=y
# - procrank used to monitor the memory used by each process, thread, application
BR2_PACKAGE_PROCRANK_LINUX=y
# - install the libdrm test programs
BR2_PACKAGE_LIBDRM_INSTALL_TESTS=y
# - io tool used to read/write register and memory
BR2_PACKAGE_IO=y
# - i2c tool used to detec, dump, set and get i2c devices
BR2_PACKAGE_I2C_TOOLS=y
# - strace used to track what system calls a program makes
BR2_PACKAGE_STRACE=y
# - iputils is a set of network debug tools like ping, tracepath, arping, tftpd, rarpd, clockdiff, rdisc
BR2_PACKAGE_IPUTILS=y
# - debug tools for wireless devices using the mac80211 kernel stack
BR2_PACKAGE_IW=y
# - a collection of tools to configure wireless lan cards, including iwconfig, iwlist, iwspy, iwpriv, ifrename
BR2_PACKAGE_WIRELESS_TOOLS=y
# - debugutils, e.g: show fps
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_DEBUGUTILS=y
# - coreutil, All of the basic file/text/shell utilities
# Things like:
# - chmod, cp, dd, dir, ls, etc...
# - sort, tr, head, tail, wc, etc...
# - whoami, who, etc...
BR2_PACKAGE_COREUTILS=y
# - perf tool provided by kernel
BR2_PACKAGE_LINUX_TOOLS_PERF=y
# function test for Rockchip stress test
BR2_PACKAGE_ROCKCHIP_TEST=y
# - add stress-ng
BR2_PACKAGE_STRESS_NG=y
# Provides things like kill, ps, uptime, free, top, etc for next generation
BR2_PACKAGE_PROCPS_NG=y
# Provides things like mpi_dec_test, mpi_enc_test.....
BR2_PACKAGE_ROCKCHIP_MPP_TESTS=y
BR2_PACKAGE_FIO=y
BR2_PACKAGE_GDB=y
BR2_PACKAGE_IOZONE=y
BR2_PACKAGE_MMC_UTILS=y
BR2_PACKAGE_CAN_UTILS=y
BR2_PACKAGE_ETHTOOL=y
BR2_PACKAGE_IPERF3=y
BR2_PACKAGE_TCPDUMP=y
BR2_PACKAGE_TCPDUMP_SMB=y
BR2_PACKAGE_LINUXPTP=y
BR2_PACKAGE_WAYLAND=y
BR2_PACKAGE_WESTON=y
BR2_PACKAGE_WESTON_DRM=y
BR2_PACKAGE_ROCKCHIP_MALI=y
# - user space IEEE 802.1X/WPA supplicant
BR2_PACKAGE_WPA_SUPPLICANT=y
# - support ap mode for your wifi
BR2_PACKAGE_WPA_SUPPLICANT_AP_SUPPORT=y
# - enable support for the autoscan feature (allow periodic scan)
BR2_PACKAGE_WPA_SUPPLICANT_AUTOSCAN=y
# - enable eap support for your wifi
BR2_PACKAGE_WPA_SUPPLICANT_EAP=y
# - install wpa_cli command line utility
BR2_PACKAGE_WPA_SUPPLICANT_CLI=y
# - install libwpa_client.so
BR2_PACKAGE_WPA_SUPPLICANT_WPA_CLIENT_SO=y
# - install wpa_passphrase command line utility
BR2_PACKAGE_WPA_SUPPLICANT_PASSPHRASE=y
# - a DHCP client
BR2_PACKAGE_DHCPCD=y
# - a lightweight DNS and DHCP server. It is intended to provide coupled DNS and DHCP service to a LAN
BR2_PACKAGE_DNSMASQ=y
# - a user space daemon for wireless access points.
BR2_PACKAGE_HOSTAPD=y
# - Network Time Protocol, provides things like ntpd, ntpdate, ntpq, etc...
BR2_PACKAGE_NTP=y
# - tiny ssh server and sftp server
BR2_PACKAGE_DROPBEAR=y
BR2_PACKAGE_GESFTPSERVER=y
# BR2_PACKAGE_DROPBEAR_CLIENT is not set
# - Someone will use ssh to login
BR2_TARGET_GENERIC_ROOT_PASSWD="rockchip"
# - A full-featured exFAT file system implementation and exFAT filesystem utilities.
BR2_PACKAGE_EXFAT=y
BR2_PACKAGE_EXFAT_UTILS=y
# - Support the read/write NTFS driver for Linux
BR2_PACKAGE_NTFS_3G=y
BR2_PACKAGE_NTFS_3G_NTFSPROGS=y
BR2_PACKAGE_UTIL_LINUX_MOUNT=y
# video_mpp subset is user space library for harware acceleration of video decoding and encoding
# - user space library for use vpu to do video decoding and encoding
BR2_PACKAGE_ROCKCHIP_MPP=y
# - we use drm for memory allocate
BR2_PACKAGE_ROCKCHIP_MPP_ALLOCATOR_DRM=y
# - user space library for use rga to do image zoom in/out, rotate, etc
BR2_PACKAGE_ROCKCHIP_RGA=y
BR2_PACKAGE_ROCKCHIP_MPP=y
BR2_PACKAGE_ROCKCHIP_MPP_ALLOCATOR_DRM=y
BR2_PACKAGE_GSTREAMER1_ROCKCHIP=y
BR2_PACKAGE_ROCKCHIP_RGA=y
BR2_PACKAGE_GSTREAMER1=y
BR2_PACKAGE_GST1_PLUGINS_BASE_INSTALL_TOOLS=y
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_ALSA=y
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_VIDEOCONVERT=y
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_VIDEOTESTSRC=y
BR2_PACKAGE_GST1_PLUGINS_GOOD=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_AUDIOPARSERS=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_AUTODETECT=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_DEINTERLACE=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_GDKPIXBUF=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_MATROSKA=y
BR2_PACKAGE_GST1_PLUGINS_BAD=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_DVBSUBOVERLAY=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_DVDSPU=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_JPEGFORMAT=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_KMS=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_MPEGDEMUX=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_MPEG2ENC=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_VIDEOPARSERS=y
BR2_PACKAGE_GST1_PLUGINS_UGLY=y
BR2_PACKAGE_GST1_PLUGINS_UGLY_PLUGIN_ASFDEMUX=y
BR2_PACKAGE_GST1_PLUGINS_UGLY_PLUGIN_DVDLPCMDEC=y
BR2_PACKAGE_GST1_PLUGINS_UGLY_PLUGIN_DVDSUB=y
BR2_PACKAGE_GST1_PLUGINS_UGLY_PLUGIN_MPEG2DEC=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_RTP=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_RTPMANAGER=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_RTSP=y
BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_UDP=y
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_TCP=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_ONVIF=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_RTMP=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_SDP=y
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_VIDEORATE=y
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_VORBIS=y
BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_OGG=y
BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_HLS=y
# - enable utils, e.g: ifconfig hciconfig...
BR2_PACKAGE_BLUEZ5_UTILS=y
# - fs overlay for powermanager
BR2_cortex_a55=y
BR2_PACKAGE_RK356X=y
BR2_TARGET_GENERIC_GETTY_PORT="ttyFIQ0"
BR2_TARGET_GENERIC_GETTY_BAUDRATE_1500000=y
BR2_TARGET_GENERIC_HOSTNAME="RK356X"
BR2_TARGET_GENERIC_ISSUE="Welcome to RK356X Buildroot"
BR2_aarch64=y
# test subset collect test tools
# - memtest used to testing the memory subsystem for faults
BR2_PACKAGE_MEMTESTER=y
# - rt test is a set of utilities for testing the real-time behaviour of a Linux system
BR2_PACKAGE_RT_TESTS=y
# - a configurable amount of CPU, memory, I/O, and disk stress on the system
BR2_PACKAGE_STRESS=y
# - stress test on cpu and memory
BR2_PACKAGE_STRESSAPPTEST=y
# - audio, reboot, bluetooth, ddr, dvfs, flash, suspend/resume, wifi
BR2_PACKAGE_ROCKCHIP_TEST=y
# wifi subset collect tools for wifi
# - rkwifibt is a collection of wifi and bt firmware
BR2_PACKAGE_RKWIFIBT=y
# - fs overlay for wifi
BR2_PACKAGE_RKWIFIBT_AP6212A1=y
BR2_PACKAGE_RKWIFIBT_BTUART="ttyS1"
BR2_PACKAGE_RKNPU2=y
BR2_PACKAGE_QT5=y
BR2_PACKAGE_OPENCV3=y
BR2_PACKAGE_OPENCV3_WITH_QT5=y
BR2_PACKAGE_OPENCV3_LIB_STITCHING=y
BR2_PACKAGE_OPENCV3_LIB_SUPERRES=y
BR2_PACKAGE_OPENCV3_LIB_TS=y
BR2_PACKAGE_OPENCV3_LIB_VIDEOSTAB=y
BR2_ROOTFS_OVERLAY="board/rockchip/common/base board/rockchip/common/powermanager board/rockchip/rk356x/fs-overlay/ board/rockchip/common/wifi"
root@pql-virtual-machine:/app#
本文探讨了在嵌入式系统开发过程中遇到的固件加载问题，特别是当设备依赖于根文件系统中的固件才能工作时的先有鸡还是先有蛋的困境。文章提供了两种解决方案：一是创建包含所需固件的初始RAM磁盘；二是将驱动程序内置到内核中，并介绍了如何在Linux内核配置中启用相关选项。
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