Thanks so much for reply!
Just tried but nothing happens.
Here is my dmesg output taken from ssh terminal running on another machine:
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.19.118-v7l+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1311 SMP Mon Apr 27 14:26:42 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 1.4
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] cma: Reserved 64 MiB at 0x0000000037400000
[ 0.000000] On node 0 totalpages: 2061312
[ 0.000000] DMA zone: 1728 pages used for memmap
[ 0.000000] DMA zone: 0 pages reserved
[ 0.000000] DMA zone: 196608 pages, LIFO batch:63
[ 0.000000] HighMem zone: 1864704 pages, LIFO batch:63
[ 0.000000] random: get_random_bytes called from start_kernel+0xc0/0x4e8 with crng_init=0
[ 0.000000] percpu: Embedded 17 pages/cpu s36928 r8192 d24512 u69632
[ 0.000000] pcpu-alloc: s36928 r8192 d24512 u69632 alloc=17*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 2059584
[ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 cma=64M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 bcm2708_fb.fbwidth=1920 bcm2708_fb.fbheight=1080 bcm2708_fb.fbswap=1 smsc95xx.macaddr=E4:5F:01:20:1E:70 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 dwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 8090108K/8245248K available (8192K kernel code, 690K rwdata, 2420K rodata, 2048K init, 860K bss, 89604K reserved, 65536K cma-reserved, 7393280K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0x(ptrval) - 0x(ptrval) (10208 kB)
.init : 0x(ptrval) - 0x(ptrval) (2048 kB)
.data : 0x(ptrval) - 0x(ptrval) ( 691 kB)
.bss : 0x(ptrval) - 0x(ptrval) ( 861 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 28928 entries in 85 pages
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] GIC: Using split EOI/Deactivate mode
[ 0.000000] arch_timer: cp15 timer(s) running at 54.00MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xc743ce346, max_idle_ns: 440795203123 ns
[ 0.000002] sched_clock: 56 bits at 54MHz, resolution 18ns, wraps every 4398046511102ns
[ 0.000009] Switching to timer-based delay loop, resolution 18ns
[ 0.000113] Console: colour dummy device 80x30
[ 0.000304] console [tty1] enabled
[ 0.000331] Calibrating delay loop (skipped), value calculated using timer frequency… 108.00 BogoMIPS (lpj=540000)
[ 0.000345] pid_max: default: 32768 minimum: 301
[ 0.000465] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000480] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000846] CPU: Testing write buffer coherency: ok
[ 0.001054] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.001341] Setting up static identity map for 0x200000 - 0x20003c
[ 0.001414] rcu: Hierarchical SRCU implementation.
[ 0.001785] smp: Bringing up secondary CPUs …
[ 0.002166] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.002583] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[ 0.002980] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[ 0.003028] smp: Brought up 1 node, 4 CPUs
[ 0.003056] SMP: Total of 4 processors activated (432.00 BogoMIPS).
[ 0.003065] CPU: All CPU(s) started in HYP mode.
[ 0.003073] CPU: Virtualization extensions available.
[ 0.003453] devtmpfs: initialized
[ 0.007947] VFP support v0.3: implementor 41 architecture 3 part 40 variant 8 rev 0
[ 0.008056] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.008074] futex hash table entries: 1024 (order: 4, 65536 bytes)
[ 0.009035] pinctrl core: initialized pinctrl subsystem
[ 0.009433] NET: Registered protocol family 16
[ 0.010889] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[ 0.011539] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[ 0.011552] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.011683] Serial: AMBA PL011 UART driver
[ 0.012940] bcm2835-mbox fe00b880.mailbox: mailbox enabled
[ 0.030007] raspberrypi-firmware soc:firmware: Attached to firmware from 2021-04-30 13:45, variant start
[ 0.040012] raspberrypi-firmware soc:firmware: Firmware hash is d7f29d96450abfc77cd6cf011af1faf1e03e5e56
[ 0.063278] bcm2835-dma fe007000.dma: DMA legacy API manager at (ptrval), dmachans=0x1
[ 0.064334] vgaarb: loaded
[ 0.064488] SCSI subsystem initialized
[ 0.064583] usbcore: registered new interface driver usbfs
[ 0.064609] usbcore: registered new interface driver hub
[ 0.064643] usbcore: registered new device driver usb
[ 0.065253] clocksource: Switched to clocksource arch_sys_counter
[ 0.098349] VFS: Disk quotas dquot_6.6.0
[ 0.098406] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.098494] FS-Cache: Loaded
[ 0.098593] CacheFiles: Loaded
[ 0.102334] NET: Registered protocol family 2
[ 0.102635] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
[ 0.102654] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.102689] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.102724] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.102795] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 0.102819] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 0.102916] NET: Registered protocol family 1
[ 0.103181] RPC: Registered named UNIX socket transport module.
[ 0.103192] RPC: Registered udp transport module.
[ 0.103201] RPC: Registered tcp transport module.
[ 0.103209] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.103221] PCI: CLS 0 bytes, default 64
[ 0.104023] hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available
[ 0.104953] Initialise system trusted keyrings
[ 0.105047] workingset: timestamp_bits=14 max_order=21 bucket_order=7
[ 0.108903] FS-Cache: Netfs ‘nfs’ registered for caching
[ 0.109134] NFS: Registering the id_resolver key type
[ 0.109154] Key type id_resolver registered
[ 0.109163] Key type id_legacy registered
[ 0.109179] nfs4filelayout_init: NFSv4 File Layout Driver Registering…
[ 0.111105] Key type asymmetric registered
[ 0.111119] Asymmetric key parser ‘x509’ registered
[ 0.111171] bounce: pool size: 64 pages
[ 0.111197] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[ 0.111283] io scheduler noop registered
[ 0.111293] io scheduler deadline registered (default)
[ 0.111368] io scheduler cfq registered
[ 0.111378] io scheduler mq-deadline registered (default)
[ 0.111387] io scheduler kyber registered
[ 0.112664] bcm2708_fb soc:fb: FB found 1 display(s)
[ 0.140048] Console: switching to colour frame buffer device 240x67
[ 0.144979] bcm2708_fb soc:fb: Registered framebuffer for display 0, size 1920x1080
[ 0.145979] Serial: 8250/16550 driver, 1 ports, IRQ sharing enabled
[ 0.146883] iproc-rng200 fe104000.rng: hwrng registered
[ 0.146999] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[ 0.147243] vc-sm: Videocore shared memory driver
[ 0.147425] gpiomem-bcm2835 fe200000.gpiomem: Initialised: Registers at 0xfe200000
[ 0.151752] brd: module loaded
[ 0.156482] loop: module loaded
[ 0.156890] Loading iSCSI transport class v2.0-870.
[ 0.157671] libphy: Fixed MDIO Bus: probed
[ 0.157874] bcmgenet fd580000.genet: failed to get enet clock
[ 0.157907] bcmgenet fd580000.genet: GENET 5.0 EPHY: 0x0000
[ 0.157939] bcmgenet fd580000.genet: failed to get enet-wol clock
[ 0.157970] bcmgenet fd580000.genet: failed to get enet-eee clock
[ 0.158012] bcmgenet: Skipping UMAC reset
[ 0.158134] unimac-mdio unimac-mdio.-19: DMA mask not set
[ 0.175264] libphy: bcmgenet MII bus: probed
[ 0.215496] unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus at 0x(ptrval)
[ 0.215926] usbcore: registered new interface driver r8152
[ 0.215983] usbcore: registered new interface driver lan78xx
[ 0.216030] usbcore: registered new interface driver smsc95xx
[ 0.216231] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[ 0.216333] dwc_otg: FIQ enabled
[ 0.216336] dwc_otg: NAK holdoff enabled
[ 0.216340] dwc_otg: FIQ split-transaction FSM enabled
[ 0.216345] Module dwc_common_port init
[ 0.216434] usbcore: registered new interface driver uas
[ 0.216484] usbcore: registered new interface driver usb-storage
[ 0.216600] mousedev: PS/2 mouse device common for all mice
[ 0.217117] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[ 0.217688] sdhci: Secure Digital Host Controller Interface driver
[ 0.217719] sdhci: Copyright© Pierre Ossman
[ 0.217922] mmc-bcm2835 fe300000.mmcnr: could not get clk, deferring probe
[ 0.218112] sdhci-pltfm: SDHCI platform and OF driver helper
[ 0.220107] ledtrig-cpu: registered to indicate activity on CPUs
[ 0.220177] hidraw: raw HID events driver © Jiri Kosina
[ 0.221456] usbcore: registered new interface driver usbhid
[ 0.222630] usbhid: USB HID core driver
[ 0.224399] vchiq: vchiq_init_state: slot_zero = (ptrval), is_master = 0
[ 0.226631] [vc_sm_connected_init]: start
[ 0.233120] [vc_sm_connected_init]: end - returning 0
[ 0.234833] Initializing XFRM netlink socket
[ 0.236073] NET: Registered protocol family 17
[ 0.237330] Key type dns_resolver registered
[ 0.238710] Registering SWP/SWPB emulation handler
[ 0.240148] registered taskstats version 1
[ 0.241357] Loading compiled-in X.509 certificates
[ 0.245572] uart-pl011 fe201000.serial: cts_event_workaround enabled
[ 0.246819] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 34, base_baud = 0) is a PL011 rev2
[ 0.252076] fe215040.serial: ttyS0 at MMIO 0x0 (irq = 36, base_baud = 62500000) is a 16550
[ 0.253493] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[ 0.254961] brcmstb_thermal fd5d2200.thermal: registered AVS TMON of-sensor driver
[ 0.256484] mmc-bcm2835 fe300000.mmcnr: mmc_debug:0 mmc_debug2:0
[ 0.257717] mmc-bcm2835 fe300000.mmcnr: DMA channel allocated
[ 0.284463] sdhci-iproc fe340000.emmc2: Linked as a consumer to regulator.3
[ 0.285740] sdhci-iproc fe340000.emmc2: Linked as a consumer to regulator.4
[ 0.306610] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[ 0.309321] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 0.312005] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 0.315879] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[ 0.317914] mmc0: SDHCI controller on fe340000.emmc2 [fe340000.emmc2] using ADMA
[ 0.319736] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 0.320584] of_cfs_init
[ 0.322202] of_cfs_init: OK
[ 0.323692] Waiting for root device /dev/mmcblk0p2…
[ 0.367742] random: fast init done
[ 0.388377] mmc1: new high speed SDIO card at address 0001
[ 0.422820] mmc0: new ultra high speed DDR50 SDHC card at address 0007
[ 0.424610] mmcblk0: mmc0:0007 SL32G 29.0 GiB
[ 0.426767] mmcblk0: p1 p2
[ 0.444097] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 0.445316] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[ 0.452484] devtmpfs: mounted
[ 0.456632] Freeing unused kernel memory: 2048K
[ 0.485354] Run /sbin/init as init process
[ 0.995447] systemd[1]: System time before build time, advancing clock.
[ 1.072535] NET: Registered protocol family 10
[ 1.074329] Segment Routing with IPv6
[ 1.105976] 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)
[ 1.109130] systemd[1]: Detected architecture arm.
[ 1.120366] systemd[1]: Set hostname to .
[ 1.593485] random: systemd: uninitialized urandom read (16 bytes read)
[ 1.598297] random: systemd: uninitialized urandom read (16 bytes read)
[ 1.602001] systemd[1]: Created slice system-getty.slice.
[ 1.605355] random: systemd: uninitialized urandom read (16 bytes read)
[ 1.607309] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[ 1.626418] systemd[1]: Condition check resulted in Journal Audit Socket being skipped.
[ 1.628078] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 1.631792] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[ 1.635775] systemd[1]: Created slice User and Session Slice.
[ 1.639174] systemd[1]: Reached target Slices.
[ 1.788150] i2c /dev entries driver
[ 1.852429] dwc2 fe980000.usb: fe980000.usb supply vusb_d not found, using dummy regulator
[ 1.852487] dwc2 fe980000.usb: Linked as a consumer to regulator.0
[ 1.852497] dwc2 fe980000.usb: fe980000.usb supply vusb_a not found, using dummy regulator
[ 2.065322] dwc2 fe980000.usb: dwc2_check_params: Invalid parameter lpm=1
[ 2.066641] dwc2 fe980000.usb: dwc2_check_params: Invalid parameter lpm_clock_gating=1
[ 2.067916] dwc2 fe980000.usb: dwc2_check_params: Invalid parameter besl=1
[ 2.069180] dwc2 fe980000.usb: dwc2_check_params: Invalid parameter hird_threshold_en=1
[ 2.070456] dwc2 fe980000.usb: EPs: 8, dedicated fifos, 4080 entries in SPRAM
[ 2.072132] dwc2 fe980000.usb: DWC OTG Controller
[ 2.073385] dwc2 fe980000.usb: new USB bus registered, assigned bus number 1
[ 2.074661] dwc2 fe980000.usb: irq 38, io mem 0xfe980000
[ 2.080895] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[ 2.082199] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.083464] usb usb1: Product: DWC OTG Controller
[ 2.084720] usb usb1: Manufacturer: Linux 4.19.118-v7l+ dwc2_hsotg
[ 2.085308] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 2.086004] usb usb1: SerialNumber: fe980000.usb
[ 2.089162] hub 1-0:1.0: USB hub found
[ 2.090671] hub 1-0:1.0: 1 port detected
[ 2.139561] MIDI Gadget
[ 2.140798] MIDI Gadget gadget: MIDI Gadget ready
[ 2.141949] dwc2 fe980000.usb: bound driver MIDI Gadget
[ 2.182728] systemd-journald[113]: Received request to flush runtime journal from PID 1
[ 2.478675] rpivid-mem feb00000.hevc-decoder: rpivid-hevcmem initialised: Registers at 0xfeb00000 length 0x0000ffff
[ 2.479173] rpivid-mem feb10000.rpivid-local-intc: rpivid-intcmem initialised: Registers at 0xfeb10000 length 0x00000fff
[ 2.484484] rpivid-mem feb20000.h264-decoder: rpivid-h264mem initialised: Registers at 0xfeb20000 length 0x0000ffff
[ 2.485233] rpivid-mem feb30000.vp9-decoder: rpivid-vp9mem initialised: Registers at 0xfeb30000 length 0x0000ffff
[ 2.499806] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[ 2.500826] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[ 2.500836] [vc_sm_connected_init]: start
[ 2.503139] [vc_sm_connected_init]: installed successfully
[ 2.524861] media: Linux media interface: v0.10
[ 2.552978] videodev: Linux video capture interface: v2.00
[ 2.607493] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[ 2.608492] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[ 2.611192] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[ 2.617719] bcm2835_audio soc:audio: card created with 4 channels
[ 2.620594] bcm2835_audio soc:audio: card created with 4 channels
[ 2.622198] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[ 2.627472] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[ 2.647667] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[ 2.647684] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[ 2.654541] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[ 2.654562] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[ 2.661502] : bcm2835_codec_get_supported_fmts: port has more encoding than we provided space for. Some are dropped.
[ 2.662004] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[ 2.662019] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[ 2.679428] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 2.708706] cfg80211: Loaded X.509 cert ‘sforshee: 00b28ddf47aef9cea7’
[ 2.764760] brcmfmac: F1 signature read @0x18000000=0x15264345
[ 2.773308] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 2.773709] usbcore: registered new interface driver brcmfmac
[ 3.004291] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 3.013904] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Jan 4 2021 19:56:29 version 7.45.229 (617f1f5 CY) FWID 01-2dbd9d2e
[ 3.899574] random: crng init done
[ 3.899584] random: 7 urandom warning(s) missed due to ratelimiting
[ 4.361007] 8021q: 802.1Q VLAN Support v1.8
[ 4.954608] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 4.954635] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
[ 5.294684] bcmgenet: Skipping UMAC reset
[ 5.395630] bcmgenet fd580000.genet: configuring instance for external RGMII (no delay)
[ 5.395879] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 6.405383] bcmgenet fd580000.genet eth0: Link is Down
[ 10.445340] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 11.475314] Bluetooth: Core ver 2.22
[ 11.475379] NET: Registered protocol family 31
[ 11.475383] Bluetooth: HCI device and connection manager initialized
[ 11.475397] Bluetooth: HCI socket layer initialized
[ 11.475408] Bluetooth: L2CAP socket layer initialized
[ 11.475429] Bluetooth: SCO socket layer initialized
[ 11.492124] Bluetooth: HCI UART driver ver 2.3
[ 11.492132] Bluetooth: HCI UART protocol H4 registered
[ 11.492172] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 11.492291] Bluetooth: HCI UART protocol Broadcom registered
[ 11.755488] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 11.755495] Bluetooth: BNEP filters: protocol multicast
[ 11.755506] Bluetooth: BNEP socket layer initialized
[ 40.342797] ICMPv6: process `dhcpcd’ is using deprecated sysctl (syscall) net.ipv6.neigh.wlan0.retrans_time - use net.ipv6.neigh.wlan0.retrans_time_ms instead
Here is my aplay -l output (I have cleared the flag in Audio Zynthian Web Config Screen named “Disable RBpi Audio” now some subdevice have appeared):
root@zynthian:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 1: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 2: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
I booted Raspian OS Plain - last version and lsusb identifies all devices correctly:
pi@raspberrypi:~ $ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 145f:0274 Trust
Bus 001 Device 004: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 001 Device 003: ID 1397:0509 BEHRINGER International GmbH
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Let me know where I should investigate.
To me looks like USB Hub is not detected. Can it be a Kernel issue?
Here is what Raspberry OS Runs which is different from Zynthian OS:
pi@raspberrypi:~ $ uname -a
Linux raspberrypi 5.10.17-v7l+ #1421 SMP Thu May 27 14:00:13 BST 2021 armv7l GNU/Linux
I want Zynthian to work 
Thanks in advance!
