pi@HyperBian:~ $ dmesg
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.4.51-v7l+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1333 SMP Mon Aug 10 16:51:40 BST 2020
[    0.000000] CPU: ARMv7 Processor [410fd083] revision 3 (ARMv7), cr=30c5383d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[    0.000000] OF: fdt: Machine model: Raspberry Pi 4 Model B Rev 1.2
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] Reserved memory: created CMA memory pool at 0x000000001ec00000, size 256 MiB
[    0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[    0.000000] On node 0 totalpages: 1012736
[    0.000000]   DMA zone: 2304 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 196608 pages, LIFO batch:63
[    0.000000]   HighMem zone: 816128 pages, LIFO batch:63
[    0.000000] percpu: Embedded 20 pages/cpu s49856 r8192 d23872 u81920
[    0.000000] pcpu-alloc: s49856 r8192 d23872 u81920 alloc=20*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 1010432
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 video=HDMI-A-1:640x480M@60 smsc95xx.macaddr=DC:A6:32:A6:B3:C3 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000  console=ttyS0,115200 console=tty1 root=PARTUUID=ca5dffb5-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: mapped [mem 0x17cc0000-0x1bcc0000] (64MB)
[    0.000000] Memory: 3655620K/4050944K available (10240K kernel code, 725K rwdata, 2740K rodata, 2048K init, 853K bss, 133180K reserved, 262144K cma-reserved, 3264512K highmem)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] ftrace: allocating 30051 entries in 59 pages
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from start_kernel+0x340/0x518 with crng_init=0
[    0.000007] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483647500ns
[    0.000030] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
[    0.000111] bcm2835: system timer (irq = 17)
[    0.000778] arch_timer: cp15 timer(s) running at 54.00MHz (phys).
[    0.000798] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xc743ce346, max_idle_ns: 440795203123 ns
[    0.000819] sched_clock: 56 bits at 54MHz, resolution 18ns, wraps every 4398046511102ns
[    0.000835] Switching to timer-based delay loop, resolution 18ns
[    0.001078] Console: colour dummy device 80x30
[    0.001571] printk: console [tty1] enabled
[    0.001632] Calibrating delay loop (skipped), value calculated using timer frequency.. 108.00 BogoMIPS (lpj=540000)
[    0.001674] pid_max: default: 32768 minimum: 301
[    0.001999] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.002040] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.003221] Disabling memory control group subsystem
[    0.003339] CPU: Testing write buffer coherency: ok
[    0.003823] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.004671] Setting up static identity map for 0x200000 - 0x20003c
[    0.004875] rcu: Hierarchical SRCU implementation.
[    0.005510] smp: Bringing up secondary CPUs ...
[    0.006669] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.007937] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.009152] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.009294] smp: Brought up 1 node, 4 CPUs
[    0.009364] SMP: Total of 4 processors activated (432.00 BogoMIPS).
[    0.009389] CPU: All CPU(s) started in HYP mode.
[    0.009412] CPU: Virtualization extensions available.
[    0.010188] devtmpfs: initialized
[    0.023162] VFP support v0.3: implementor 41 architecture 3 part 40 variant 8 rev 0
[    0.023433] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.023480] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[    0.031231] pinctrl core: initialized pinctrl subsystem
[    0.032273] NET: Registered protocol family 16
[    0.035905] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.037561] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.037595] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.037935] Serial: AMBA PL011 UART driver
[    0.041343] bcm2835-mbox fe00b880.mailbox: mailbox enabled
[    0.060893] raspberrypi-firmware soc:firmware: Attached to firmware from 2020-08-19 17:38, variant start
[    0.070876] raspberrypi-firmware soc:firmware: Firmware hash is e90cba19a98a0d1f2ef086b9cafcbca00778f094
[    0.124313] bcm2835-dma fe007000.dma: DMA legacy API manager, dmachans=0x1
[    0.128774] vgaarb: loaded
[    0.129257] SCSI subsystem initialized
[    0.129505] usbcore: registered new interface driver usbfs
[    0.129576] usbcore: registered new interface driver hub
[    0.129717] usbcore: registered new device driver usb
[    0.131263] clocksource: Switched to clocksource arch_sys_counter
[    0.882490] VFS: Disk quotas dquot_6.6.0
[    0.882612] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.882782] FS-Cache: Loaded
[    0.882979] CacheFiles: Loaded
[    0.883805] simple-framebuffer 3ea9b000.framebuffer: framebuffer at 0x3ea9b000, 0x12c000 bytes, mapped to 0x(ptrval)
[    0.883845] simple-framebuffer 3ea9b000.framebuffer: format=a8r8g8b8, mode=640x480x32, linelength=2560
[    0.885815] Console: switching to colour frame buffer device 80x30
[    0.888472] simple-framebuffer 3ea9b000.framebuffer: fb0: simplefb registered!
[    0.899928] thermal_sys: Registered thermal governor 'step_wise'
[    0.900280] NET: Registered protocol family 2
[    0.903321] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[    0.905450] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    0.907611] TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.908760] TCP: Hash tables configured (established 8192 bind 8192)
[    0.909977] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.911101] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.912498] NET: Registered protocol family 1
[    0.914317] RPC: Registered named UNIX socket transport module.
[    0.915482] RPC: Registered udp transport module.
[    0.916620] RPC: Registered tcp transport module.
[    0.917725] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.918842] PCI: CLS 0 bytes, default 64
[    0.921741] hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available
[    0.926056] Initialise system trusted keyrings
[    0.927384] workingset: timestamp_bits=14 max_order=20 bucket_order=6
[    0.939105] FS-Cache: Netfs 'nfs' registered for caching
[    0.940921] NFS: Registering the id_resolver key type
[    0.942076] Key type id_resolver registered
[    0.943132] Key type id_legacy registered
[    0.944163] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.946276] Key type asymmetric registered
[    0.947310] Asymmetric key parser 'x509' registered
[    0.948483] bounce: pool size: 64 pages
[    0.949510] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    0.951714] io scheduler mq-deadline registered
[    0.952688] io scheduler kyber registered
[    0.957367] brcm-pcie fd500000.pcie: host bridge /scb/pcie@7d500000 ranges:
[    0.958353] brcm-pcie fd500000.pcie:   No bus range found for /scb/pcie@7d500000, using [bus 00-ff]
[    0.960249] brcm-pcie fd500000.pcie:      MEM 0x0600000000..0x0603ffffff -> 0x00f8000000
[    0.962261] brcm-pcie fd500000.pcie:   IB MEM 0x0000000000..0x00bfffffff -> 0x0000000000
[    1.023374] brcm-pcie fd500000.pcie: link up, 5 GT/s x1 (SSC)
[    1.024717] brcm-pcie fd500000.pcie: PCI host bridge to bus 0000:00
[    1.025761] pci_bus 0000:00: root bus resource [bus 00-ff]
[    1.026784] pci_bus 0000:00: root bus resource [mem 0x600000000-0x603ffffff] (bus address [0xf8000000-0xfbffffff])
[    1.028820] pci 0000:00:00.0: [14e4:2711] type 01 class 0x060400
[    1.030066] pci 0000:00:00.0: PME# supported from D0 D3hot
[    1.034482] PCI: bus0: Fast back to back transfers disabled
[    1.035725] pci 0000:01:00.0: [1106:3483] type 00 class 0x0c0330
[    1.036898] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00000fff 64bit]
[    1.038336] pci 0000:01:00.0: PME# supported from D0 D3cold
[    1.042705] PCI: bus1: Fast back to back transfers disabled
[    1.043771] pci 0000:00:00.0: BAR 8: assigned [mem 0x600000000-0x6000fffff]
[    1.044825] pci 0000:01:00.0: BAR 0: assigned [mem 0x600000000-0x600000fff 64bit]
[    1.046839] pci 0000:00:00.0: PCI bridge to [bus 01]
[    1.047853] pci 0000:00:00.0:   bridge window [mem 0x600000000-0x6000fffff]
[    1.049165] pcieport 0000:00:00.0: enabling device (0140 -> 0142)
[    1.050405] pcieport 0000:00:00.0: PME: Signaling with IRQ 56
[    1.051795] pcieport 0000:00:00.0: AER: enabled with IRQ 56
[    1.053113] pci 0000:01:00.0: enabling device (0140 -> 0142)
[    1.060712] iproc-rng200 fe104000.rng: hwrng registered
[    1.062025] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[    1.064513] vc-sm: Videocore shared memory driver
[    1.065962] gpiomem-bcm2835 fe200000.gpiomem: Initialised: Registers at 0xfe200000
[    1.079514] brd: module loaded
[    1.092476] loop: module loaded
[    1.094742] Loading iSCSI transport class v2.0-870.
[    1.097575] libphy: Fixed MDIO Bus: probed
[    1.099058] bcmgenet fd580000.ethernet: failed to get enet clock
[    1.100009] bcmgenet fd580000.ethernet: GENET 5.0 EPHY: 0x0000
[    1.100939] bcmgenet fd580000.ethernet: failed to get enet-wol clock
[    1.101910] bcmgenet fd580000.ethernet: failed to get enet-eee clock
[    1.102818] bcmgenet: Skipping UMAC reset
[    1.121342] libphy: bcmgenet MII bus: probed
[    1.211365] unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus
[    1.213281] usbcore: registered new interface driver r8152
[    1.214221] usbcore: registered new interface driver lan78xx
[    1.215124] usbcore: registered new interface driver smsc95xx
[    1.216362] xhci_hcd 0000:01:00.0: xHCI Host Controller
[    1.217211] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 1
[    1.221115] xhci_hcd 0000:01:00.0: hcc params 0x002841eb hci version 0x100 quirks 0x0000001000000890
[    1.224149] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[    1.225924] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.227725] usb usb1: Product: xHCI Host Controller
[    1.228628] usb usb1: Manufacturer: Linux 5.4.51-v7l+ xhci-hcd
[    1.229550] usb usb1: SerialNumber: 0000:01:00.0
[    1.231033] hub 1-0:1.0: USB hub found
[    1.232078] hub 1-0:1.0: 1 port detected
[    1.233502] xhci_hcd 0000:01:00.0: xHCI Host Controller
[    1.234421] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 2
[    1.236240] xhci_hcd 0000:01:00.0: Host supports USB 3.0 SuperSpeed
[    1.237716] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.04
[    1.239689] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.241752] usb usb2: Product: xHCI Host Controller
[    1.242819] usb usb2: Manufacturer: Linux 5.4.51-v7l+ xhci-hcd
[    1.243909] usb usb2: SerialNumber: 0000:01:00.0
[    1.245548] hub 2-0:1.0: USB hub found
[    1.246695] hub 2-0:1.0: 4 ports detected
[    1.249109] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    1.250401] dwc_otg: FIQ enabled
[    1.250413] dwc_otg: NAK holdoff enabled
[    1.250424] dwc_otg: FIQ split-transaction FSM enabled
[    1.250438] Module dwc_common_port init
[    1.250879] usbcore: registered new interface driver uas
[    1.252029] usbcore: registered new interface driver usb-storage
[    1.253183] mousedev: PS/2 mouse device common for all mice
[    1.256214] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    1.259594] sdhci: Secure Digital Host Controller Interface driver
[    1.260539] sdhci: Copyright(c) Pierre Ossman
[    1.262064] mmc-bcm2835 fe300000.mmcnr: could not get clk, deferring probe
[    1.263610] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.268233] ledtrig-cpu: registered to indicate activity on CPUs
[    1.269523] hidraw: raw HID events driver (C) Jiri Kosina
[    1.270696] usbcore: registered new interface driver usbhid
[    1.271732] usbhid: USB HID core driver
[    1.273738] vchiq: vchiq_init_state: slot_zero = (ptrval)
[    1.276600] [vc_sm_connected_init]: start
[    1.285884] [vc_sm_connected_init]: end - returning 0
[    1.288840] Initializing XFRM netlink socket
[    1.289782] NET: Registered protocol family 17
[    1.290773] Key type dns_resolver registered
[    1.292096] Registering SWP/SWPB emulation handler
[    1.293260] registered taskstats version 1
[    1.294118] Loading compiled-in X.509 certificates
[    1.295437] Key type ._fscrypt registered
[    1.296291] Key type .fscrypt registered
[    1.307033] uart-pl011 fe201000.serial: cts_event_workaround enabled
[    1.307984] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 29, base_baud = 0) is a PL011 rev2
[    1.315632] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[    1.318355] mmc-bcm2835 fe300000.mmcnr: mmc_debug:0 mmc_debug2:0
[    1.319307] mmc-bcm2835 fe300000.mmcnr: DMA channel allocated
[    1.369862] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[    1.372440] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.375088] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.378890] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[    1.381355] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.386294] mmc0: SDHCI controller on fe340000.emmc2 [fe340000.emmc2] using ADMA
[    1.390677] of_cfs_init
[    1.391735] of_cfs_init: OK
[    1.393543] Waiting for root device PARTUUID=ca5dffb5-02...
[    1.430667] random: fast init done
[    1.457268] mmc1: new high speed SDIO card at address 0001
[    1.497237] mmc0: new ultra high speed DDR50 SDHC card at address aaaa
[    1.498961] mmcblk0: mmc0:aaaa SC32G 29.7 GiB
[    1.502792]  mmcblk0: p1 p2
[    1.522985] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    1.524752] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    1.530555] devtmpfs: mounted
[    1.539426] Freeing unused kernel memory: 2048K
[    1.561565] Run /sbin/init as init process
[    1.611324] usb 1-1: new high-speed USB device number 2 using xhci_hcd
[    1.793934] usb 1-1: New USB device found, idVendor=2109, idProduct=3431, bcdDevice= 4.21
[    1.795653] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[    1.796622] usb 1-1: Product: USB2.0 Hub
[    1.799521] hub 1-1:1.0: USB hub found
[    1.800726] hub 1-1:1.0: 4 ports detected
[    1.963315] systemd[1]: System time before build time, advancing clock.
[    2.059093] NET: Registered protocol family 10
[    2.061374] Segment Routing with IPv6
[    2.091844] systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[    2.097193] systemd[1]: Detected architecture arm.
[    2.121365] usb 1-1.3: new high-speed USB device number 3 using xhci_hcd
[    2.149625] systemd[1]: Set hostname to <HyperBian>.
[    2.259920] usb 1-1.3: New USB device found, idVendor=1bcf, idProduct=2c99, bcdDevice= 1.00
[    2.262223] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    2.264553] usb 1-1.3: Product: ezcap U3 capture
[    2.265779] usb 1-1.3: Manufacturer: VXIS Inc
[    2.381327] usb 1-1.4: new full-speed USB device number 4 using xhci_hcd
[    2.531215] usb 1-1.4: New USB device found, idVendor=2341, idProduct=8036, bcdDevice= 1.00
[    2.533365] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    2.535536] usb 1-1.4: Product: Arduino Leonardo
[    2.536644] usb 1-1.4: Manufacturer: Arduino LLC
[    2.778954] random: systemd: uninitialized urandom read (16 bytes read)
[    2.791956] random: systemd: uninitialized urandom read (16 bytes read)
[    2.793754] systemd[1]: Listening on Journal Socket (/dev/log).
[    2.818618] systemd[1]: Condition check resulted in Journal Audit Socket being skipped.
[    2.820814] random: systemd: uninitialized urandom read (16 bytes read)
[    2.822672] systemd[1]: Listening on fsck to fsckd communication Socket.
[    2.825767] systemd[1]: Listening on initctl Compatibility Named Pipe.
[    2.835507] systemd[1]: Listening on Syslog Socket.
[    2.840229] systemd[1]: Created slice User and Session Slice.
[    2.843145] systemd[1]: Reached target Slices.
[    3.508390] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[    3.609224] systemd-journald[104]: Received request to flush runtime journal from PID 1
[    4.080534] rpivid-mem feb00000.hevc-decoder: rpivid-hevcmem initialised: Registers at 0xfeb00000 length 0x00010000
[    4.088388] rpivid-mem feb10000.rpivid-local-intc: rpivid-intcmem initialised: Registers at 0xfeb10000 length 0x00001000
[    4.088863] rpivid-mem feb20000.h264-decoder: rpivid-h264mem initialised: Registers at 0xfeb20000 length 0x00010000
[    4.089263] rpivid-mem feb30000.vp9-decoder: rpivid-vp9mem initialised: Registers at 0xfeb30000 length 0x00010000
[    4.148595] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[    4.150709] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[    4.150730] [vc_sm_connected_init]: start
[    4.157146] mc: Linux media interface: v0.10
[    4.158041] [vc_sm_connected_init]: installed successfully
[    4.194503] videodev: Linux video capture interface: v2.00
[    4.237697] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[    4.237779] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[    4.265663] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned.
[    4.272229] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[    4.283304] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[    4.300652] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[    4.305777] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video13
[    4.307368] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video14
[    4.309922] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video15
[    4.310287] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video16
[    4.310314] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[    4.310336] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[    4.310355] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[    4.310374] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[    4.310546] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp
[    4.395844] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[    4.395887] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[    4.421376] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[    4.421435] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[    4.426971] bcm2835_audio bcm2835_audio: card created with 4 channels
[    4.432831] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[    4.432872] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[    4.454902] bcm2835_audio bcm2835_audio: card created with 4 channels
[    4.472909] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    4.602954] cdc_acm 1-1.4:1.0: ttyACM0: USB ACM device
[    4.608501] usbcore: registered new interface driver cdc_acm
[    4.608515] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[    4.618818] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    4.674695] uvcvideo: Found UVC 1.00 device ezcap U3 capture (1bcf:2c99)
[    4.678072] uvcvideo: Failed to query (GET_INFO) UVC control 11 on unit 1: -32 (exp. 1).
[    4.681586] brcmfmac: F1 signature read @0x18000000=0x15264345
[    4.690592] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[    4.691082] usbcore: registered new interface driver brcmfmac
[    4.692892] [drm] Initialized v3d 1.0.0 20180419 for fec00000.v3d on minor 0
[    4.709561] uvcvideo 1-1.3:1.0: Entity type for entity Extension 4 was not initialized!
[    4.709584] uvcvideo 1-1.3:1.0: Entity type for entity Extension 3 was not initialized!
[    4.709603] uvcvideo 1-1.3:1.0: Entity type for entity Processing 2 was not initialized!
[    4.709622] uvcvideo 1-1.3:1.0: Entity type for entity Camera 1 was not initialized!
[    4.710036] input: ezcap U3 capture: ezcap U3 capt as /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.0/input/input0
[    4.710333] usbcore: registered new interface driver uvcvideo
[    4.710346] USB Video Class driver (1.1.1)
[    4.714658] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.raspberrypi,4-model-b.txt failed with error -2
[    4.805694] usb 1-1.3: 3:1: cannot get freq at ep 0x86
[    4.824641] usb 1-1.3: Warning! Unlikely big volume range (=4096), cval->res is probably wrong.
[    4.824662] usb 1-1.3: [5] FU [Digital In Capture Volume] ch = 1, val = 0/4096/1
[    4.825652] usbcore: registered new interface driver snd-usb-audio
[    4.924997] vc4-drm gpu: bound fe600000.firmwarekms (ops vc4_fkms_ops [vc4])
[    4.925019] checking generic (3ea9b000 12c000) vs hw (0 ffffffffffffffff)
[    4.925033] fb0: switching to vc4drmfb from simple
[    4.925577] Console: switching to colour dummy device 80x30
[    4.928724] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    4.928737] [drm] No driver support for vblank timestamp query.
[    4.928748] [drm] Setting vblank_disable_immediate to false because get_vblank_timestamp == NULL
[    4.936015] [drm] Initialized vc4 0.0.0 20140616 for gpu on minor 1
[    4.939500] vc4-drm gpu: HDMI-A-1: EDID is invalid:
[    4.939518] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.939531] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.939543] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.939555] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.939567] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.939578] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.939590] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.939602] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.946089] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[    4.965605] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Mar 23 2020 02:19:54 version 7.45.206 (r725000 CY) FWID 01-88ee44ea
[    5.113414] Console: switching to colour frame buffer device 80x30
[    5.123622] vc4-drm gpu: fb0: vc4drmfb frame buffer device
[    6.728042] uart-pl011 fe201000.serial: no DMA platform data
[    6.861744] 8021q: 802.1Q VLAN Support v1.8
[    6.974485] random: crng init done
[    6.974504] random: 7 urandom warning(s) missed due to ratelimiting
[    7.041378] Adding 102396k swap on /var/swap.  Priority:-2 extents:1 across:102396k SSFS
[    7.463838] bcmgenet: Skipping UMAC reset
[    7.466199] bcmgenet fd580000.ethernet: configuring instance for external RGMII
[    7.466458] bcmgenet fd580000.ethernet eth0: Link is Down
[   12.631456] bcmgenet fd580000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[   12.631502] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   13.416785] Bluetooth: Core ver 2.22
[   13.416864] NET: Registered protocol family 31
[   13.416877] Bluetooth: HCI device and connection manager initialized
[   13.416903] Bluetooth: HCI socket layer initialized
[   13.416922] Bluetooth: L2CAP socket layer initialized
[   13.416952] Bluetooth: SCO socket layer initialized
[   13.427316] Bluetooth: HCI UART driver ver 2.3
[   13.427334] Bluetooth: HCI UART protocol H4 registered
[   13.427414] Bluetooth: HCI UART protocol Three-wire (H5) registered
[   13.427702] Bluetooth: HCI UART protocol Broadcom registered
[   13.624502] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   13.624509] Bluetooth: BNEP filters: protocol multicast
[   13.624522] Bluetooth: BNEP socket layer initialized