I followed the solution in https://ask.csdn.net/questions/8803663 to load uvcvideo, but it can't work.
/dev/video0 can be seen, but there are many video files ,from video0 to video 63, and video7 ,video8 ,video9
command
Code: Select all
ffplay /dev/video0command[video4linux2,v4l2 @ 0x7f8cc0000c80] ioctl(VIDIOC_G_PARM): Inappropriate ioctl for device
[video4linux2,v4l2 @ 0x7f8cc0000c80] Time per frame unknown
[video4linux2,v4l2 @ 0x7f8cc0000c80] ioctl(VIDIOC_STREAMON): Link has been severed
/dev/video0: Link has been severed
Code: Select all
grep -r "Huawei.*camera" /usr/src/linux-headers-$(uname -r)/system info :
Portage 3.0.72 (python 3.13.9-final-0, default/linux/amd64/23.0/desktop/gnome/systemd, gcc-15, glibc-2.41-r6, 6.12.58-gentoo-gentoo x86_64)
=================================================================
System uname: Linux-6.12.58-gentoo-gentoo-x86_64-11th_Gen_Intel-R-_Core-TM-_i7-1160G7_@_1.20GHz-with-glibc2.41
KiB Mem: 16142912 total, 11681584 free
KiB Swap: 8388600 total, 8388600 free
Timestamp of repository gentoo: Sat, 20 Dec 2025 13:15:57 +0000
Head commit of repository gentoo: 2d9029be3d06f2b17f6e7453a95a541e6b6f211e
Head commit of repository gentoo-zh: 102505eb617e4ea3ef060bb098628847ae47ef49
Timestamp of repository guru: Sat, 20 Dec 2025 21:46:06 +0000
Head commit of repository guru: 96083377892838828a91e38cc1464b7dc681ca50
sh bash 5.3_p3-r3
ld GNU ld (Gentoo 2.45.1 p1) 2.45.1
app-misc/pax-utils: 1.3.8::gentoo
app-shells/bash: 5.3_p3-r3::gentoo
dev-build/autoconf: 2.13-r8::gentoo, 2.72-r4::gentoo
dev-build/automake: 1.18.1::gentoo
dev-build/cmake: 4.1.2-r1::gentoo
dev-build/libtool: 2.5.4::gentoo
dev-build/make: 4.4.1-r102::gentoo
dev-build/meson: 1.9.1::gentoo
dev-lang/perl: 5.42.0-r1::gentoo
dev-lang/python: 3.13.9::gentoo, 3.14.0_p1::gentoo
dev-lang/rust: 1.89.0::gentoo
dev-lang/rust-bin: 1.86.0-r1::gentoo, 1.89.0::gentoo
llvm-core/clang: 20.1.8::gentoo
llvm-core/lld: 20.1.8::gentoo
llvm-core/llvm: 20.1.8::gentoo
sys-apps/baselayout: 2.18::gentoo
sys-apps/sandbox: 2.46::gentoo
sys-apps/systemd: 257.10::gentoo
sys-devel/binutils: 2.45.1::gentoo
sys-devel/binutils-config: 5.6::gentoo
sys-devel/gcc: 15.2.1_p20251122::gentoo
sys-devel/gcc-config: 2.12.2::gentoo
sys-kernel/linux-headers: 6.12::gentoo (virtual/os-headers)
sys-libs/glibc: 2.41-r6::gentoo
Repositories:
gentoo
location: /var/db/repos/gentoo
sync-type: git
sync-uri: https://mirror.nju.edu.cn/git/gentoo-portage.git
priority: -1000
volatile: False
sync-git-verify-commit-signature: true
gentoo-zh
location: /var/db/repos/gentoo-zh
sync-type: git
sync-uri: https://mirror.nju.edu.cn/git/gentoo-zh.git
masters: gentoo
volatile: False
guru
location: /var/db/repos/guru
sync-type: git
sync-uri: https://anongit.gentoo.org/git/repo/sync/guru.git
masters: gentoo
volatile: False
Binary Repositories:
gentoobinhost
priority: 99
sync-uri: https://mirror.nju.edu.cn/gentoo/releas ... 3.0/x86-64
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="@FREE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-march=native -O2 -pipe"
DISTDIR="/var/cache/distfiles"
ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GDK_PIXBUF_MODULE_FILE GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR XDG_STATE_HOME"
FCFLAGS="-march=native -O2 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg-live config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync merge-wait multilib-strict network-sandbox news parallel-fetch pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-march=native -O2 -pipe"
GENTOO_MIRRORS="https://mirror.nju.edu.cn/gentoo/ https://mirrors.ustc.edu.cn/gentoo/"
LANG="zh_CN.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs"
LEX="flex"
LINGUAS="en zh_CN zh_TW"
MAKEOPTS="-j8"
PKGDIR="/var/cache/binpkgs"
PORTAGE_COMPRESS="bzip2"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git"
PORTAGE_TMPDIR="/var/tmp"
RUSTFLAGS=" -C target-cpu=native"
SHELL="/bin/bash"
USE="X a52 aac acl acpi alsa amd64 avif bluetooth branding bzip2 cairo cdda cdr cet colord crypt cups dbus dist-kernel dri dts dvd dvdr eds encode evo exif flac gdbm gdk-pixbuf gif git gnome gnome-keyring gnome-online-accounts gnome-shell gpm gstreamer gtk gtk3 gui iconv icu introspection ipv6 jpeg jpegxl keyring lcms libnotify libtirpc mad mng modules-sign mp3 mp4 mpeg multilib nautilus ncurses networkmanager nls ogg opengl openmp pam pango pcre pdf pipewire png policykit ppds pulseaudio qml qt6 readline screencast sdl seccomp secureboot sound spell ssl startup-notification svg sysprof systemd test-rust tiff tracker truetype udev udisks unicode upower usb vaapi vorbis vpx vulkan wayland webp wxwidgets x264 xattr xcb xft xml xv xvid zlib" ABI_X86="64" ADA_TARGET="gcc_15" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_anon authn_dbm authn_file authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 aes avx avx2 avx512_bitalg avx512_vbmi2 avx512_vnni avx512_vp2intersect avx512_vpopcntdq avx512bw avx512cd avx512dq avx512f avx512ifma avx512vbmi avx512vl bmi1 bmi2 f16c fma3 pclmul popcnt rdrand sha sse3 sse4_1 sse4_2 ssse3 vpclmulqdq" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax navcom oceanserver oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 tsip tripmate tnt ublox" GRUB_PLATFORMS="efi-64" GUILE_SINGLE_TARGET="3-0" GUILE_TARGETS="3-0" INPUT_DEVICES="libinput" KERNEL="linux" L10N="en zh zh-CN zh-TW" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LLVM_TARGETS="X86" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-3" POSTGRES_TARGETS="postgres17" PYTHON_SINGLE_TARGET="python3_13" PYTHON_TARGETS="python3_13" RUBY_TARGETS="ruby32 ruby33" VIDEO_CARDS="intel i965 iris" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account"
Unset: ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, MAKE, MAKEFLAGS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, RANLIB, READELF, SIZE, STRINGS, STRIP, YACC, YFLAGS


