thank you for your help.
here is dmesg
debian@arm:~$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.19.31-bone-rt-r31 (root@ubuntu) (gcc version 8.3.0 (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36))) #4 PREEMPT RT Thu Nov 11 01:08:01 PST 2021
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=50c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: TI AM335x BeagleBone Black
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: UEFI not found.
[ 0.000000] cma: Reserved 48 MiB at 0x9d000000
[ 0.000000] On node 0 totalpages: 131072
[ 0.000000] Normal zone: 1152 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 131072 pages, LIFO batch:31
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM335X ES2.1 (sgx neon)
[ 0.000000] random: get_random_bytes called from start_kernel+0x7b/0x410 with crng_init=0
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 129920
[ 0.000000] Kernel command line: console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 quiet
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Memory: 454316K/524288K available (8192K kernel code, 954K rwdata, 3064K rodata, 1024K init, 331K bss, 20820K reserved, 49152K cma-reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xe0800000 - 0xff800000 ( 496 MB)
lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf800000 - 0xbfe00000 ( 6 MB)
.text : 0x(ptrval) - 0x(ptrval) (9184 kB)
.init : 0x(ptrval) - 0x(ptrval) (1024 kB)
.data : 0x(ptrval) - 0x(ptrval) ( 955 kB)
.bss : 0x(ptrval) - 0x(ptrval) ( 332 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] ftrace: allocating 38347 entries in 75 pages
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU priority boosting: priority 1 delay 500 ms.
[ 0.000000] No expedited grace period (rcu_normal_after_boot).
[ 0.000000] Tasks RCU enabled.
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 5.0) with 128 interrupts
[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000020] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000033] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000042] OMAP clocksource: timer1 at 24000000 Hz
[ 0.001335] timer_probe: no matching timers found
[ 0.001540] Console: colour dummy device 80x30
[ 0.001582] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[ 0.001584] This ensures that you still see kernel messages. Please
[ 0.001586] update your kernel commandline.
[ 0.001619] Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)
[ 0.017673] pid_max: default: 32768 minimum: 301
[ 0.017938] Security Framework initialized
[ 0.017957] Yama: becoming mindful.
[ 0.018080] AppArmor: AppArmor initialized
[ 0.018165] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.018174] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.019122] CPU: Testing write buffer coherency: ok
[ 0.019169] CPU0: Spectre v2: using BPIALL workaround
[ 0.020112] Setting up static identity map for 0x80100000 - 0x80100054
[ 0.020367] rcu: Hierarchical SRCU implementation.
[ 0.023565] EFI services will not be available.
[ 0.025061] devtmpfs: initialized
[ 0.053513] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.054128] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.054148] futex hash table entries: 256 (order: 1, 8192 bytes)
[ 0.057644] xor: measuring software checksum speed
[ 0.097683] arm4regs : 1221.000 MB/sec
[ 0.137670] 8regs : 1094.000 MB/sec
[ 0.177668] 32regs : 1055.000 MB/sec
[ 0.177674] xor: using function: arm4regs (1221.000 MB/sec)
[ 0.177690] pinctrl core: initialized pinctrl subsystem
[ 0.178471] DMI not present or invalid.
[ 0.178912] NET: Registered protocol family 16
[ 0.182983] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[ 0.240013] l4_wkup_cm:clk:0010:0: failed to disable
[ 0.280078] audit: initializing netlink subsys (disabled)
[ 0.285765] audit: type=2000 audit(0.280:1): state=initialized audit_enabled=0 res=1
[ 0.287335] OMAP GPIO hardware version 0.1
[ 0.305146] No ATAGs?
[ 0.305162] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.317630] raid6: using algorithm int32x8 gen() 0 MB/s
[ 0.317640] raid6: .... xor() 0 MB/s, rmw enabled
[ 0.317645] raid6: using intx1 recovery algorithm
[ 0.324286] edma 49000000.edma: TI EDMA DMA engine driver
[ 0.328227] SCSI subsystem initialized
[ 0.328302] libata version 3.00 loaded.
[ 0.328542] usbcore: registered new interface driver usbfs
[ 0.328591] usbcore: registered new interface driver hub
[ 0.328780] usbcore: registered new device driver usb
[ 0.330320] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 100 kHz
[ 0.331453] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz
[ 0.331857] pps_core: LinuxPPS API ver. 1 registered
[ 0.331864] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.331884] PTP clock support registered
[ 0.332416] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[ 0.333140] Advanced Linux Sound Architecture Driver Initialized.
[ 0.333884] NetLabel: Initializing
[ 0.333893] NetLabel: domain hash size = 128
[ 0.333897] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO
[ 0.333975] NetLabel: unlabeled traffic allowed by default
[ 0.334748] clocksource: Switched to clocksource timer1
[ 0.471076] VFS: Disk quotas dquot_6.6.0
[ 0.471158] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.471902] AppArmor: AppArmor Filesystem Enabled
[ 0.482219] NET: Registered protocol family 2
[ 0.483308] tcp_listen_portaddr_hash hash table entries: 256 (order: 0, 7168 bytes)
[ 0.483343] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.483396] TCP bind hash table entries: 4096 (order: 4, 98304 bytes)
[ 0.483515] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.483625] UDP hash table entries: 256 (order: 2, 16384 bytes)
[ 0.483655] UDP-Lite hash table entries: 256 (order: 2, 16384 bytes)
[ 0.483889] NET: Registered protocol family 1
[ 0.484635] RPC: Registered named UNIX socket transport module.
[ 0.484642] RPC: Registered udp transport module.
[ 0.484646] RPC: Registered tcp transport module.
[ 0.484650] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.485486] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[ 0.491983] Initialise system trusted keyrings
[ 0.492308] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[ 0.498564] zbud: loaded
[ 0.501772] NFS: Registering the id_resolver key type
[ 0.501809] Key type id_resolver registered
[ 0.501814] Key type id_legacy registered
[ 0.501830] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 0.502126] fuse init (API version 7.27)
[ 0.510065] Key type asymmetric registered
[ 0.510077] Asymmetric key parser 'x509' registered
[ 0.510157] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[ 0.510378] io scheduler noop registered
[ 0.510385] io scheduler deadline registered
[ 0.510941] io scheduler cfq registered (default)
[ 0.510950] io scheduler mq-deadline registered
[ 0.512758] pinctrl-single 44e10800.pinmux: 142 pins, size 568
[ 0.524081] gpio-of-helper ocp:cape-universal: ready
[ 0.533141] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[ 0.535082] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled
[ 0.537940] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 30, base_baud = 3000000) is a 8250
[ 0.554593] console [ttyS0] enabled
[ 0.555577] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 31, base_baud = 3000000) is a 8250
[ 0.556334] 48024000.serial: ttyS2 at MMIO 0x48024000 (irq = 32, base_baud = 3000000) is a 8250
[ 0.557033] 481a6000.serial: ttyS3 at MMIO 0x481a6000 (irq = 33, base_baud = 3000000) is a 8250
[ 0.557706] 481a8000.serial: ttyS4 at MMIO 0x481a8000 (irq = 34, base_baud = 3000000) is a 8250
[ 0.558408] 481aa000.serial: ttyS5 at MMIO 0x481aa000 (irq = 35, base_baud = 3000000) is a 8250
[ 0.561496] omap_rng 48310000.rng: Random Number Generator ver. 20
[ 0.676572] eqep 48300180.eqep: ver. 1.0
[ 0.676987] eqep 48300180.eqep: count_mode:0
[ 0.676997] eqep 48300180.eqep: invert_qa:1
[ 0.677004] eqep 48300180.eqep: invert_qb:1
[ 0.677011] eqep 48300180.eqep: invert_qi:0
[ 0.677018] eqep 48300180.eqep: invert_qs:0
[ 0.677025] eqep 48300180.eqep: swap_inputs:0
[ 0.677032] eqep 48300180.eqep: QDECCTL:0x0180
[ 0.677039] eqep 48300180.eqep: QPOSINIT:0x00000000
[ 0.677045] eqep 48300180.eqep: QPOSMAX:0xffffffff
[ 0.677051] eqep 48300180.eqep: QPOSCNT:0x00000000
[ 0.677058] eqep 48300180.eqep: omit_interrupt:0
[ 0.677064] eqep 48300180.eqep: QEINT:0x0800
[ 0.677070] eqep 48300180.eqep: QUPRD:0x05f5e100
[ 0.677077] eqep 48300180.eqep: QEPCTL:0x009e write
[ 0.677083] eqep 48300180.eqep: QEPCTL:0x009e read
[ 0.677104] eqep 48300180.eqep: irq:136, clk_rate:100000000
[ 0.677346] eqep 48302180.eqep: ver. 1.0
[ 0.677621] eqep 48302180.eqep: count_mode:0
[ 0.677630] eqep 48302180.eqep: invert_qa:1
[ 0.677637] eqep 48302180.eqep: invert_qb:1
[ 0.677644] eqep 48302180.eqep: invert_qi:0
[ 0.677650] eqep 48302180.eqep: invert_qs:0
[ 0.677657] eqep 48302180.eqep: swap_inputs:0
[ 0.677663] eqep 48302180.eqep: QDECCTL:0x0180
[ 0.677670] eqep 48302180.eqep: QPOSINIT:0x00000000
[ 0.677676] eqep 48302180.eqep: QPOSMAX:0xffffffff
[ 0.677682] eqep 48302180.eqep: QPOSCNT:0x00000000
[ 0.677688] eqep 48302180.eqep: omit_interrupt:0
[ 0.677694] eqep 48302180.eqep: QEINT:0x0800
[ 0.677700] eqep 48302180.eqep: QUPRD:0x05f5e100
[ 0.677706] eqep 48302180.eqep: QEPCTL:0x009e write
[ 0.677713] eqep 48302180.eqep: QEPCTL:0x009e read
[ 0.677729] eqep 48302180.eqep: irq:138, clk_rate:100000000
[ 0.677867] eqep 48304180.eqep: ver. 1.0
[ 0.678117] eqep 48304180.eqep: count_mode:0
[ 0.678126] eqep 48304180.eqep: invert_qa:1
[ 0.678132] eqep 48304180.eqep: invert_qb:1
[ 0.678139] eqep 48304180.eqep: invert_qi:0
[ 0.678146] eqep 48304180.eqep: invert_qs:0
[ 0.678153] eqep 48304180.eqep: swap_inputs:0
[ 0.678159] eqep 48304180.eqep: QDECCTL:0x0180
[ 0.678166] eqep 48304180.eqep: QPOSINIT:0x00000000
[ 0.678172] eqep 48304180.eqep: QPOSMAX:0xffffffff
[ 0.678177] eqep 48304180.eqep: QPOSCNT:0x00000000
[ 0.678184] eqep 48304180.eqep: omit_interrupt:0
[ 0.678189] eqep 48304180.eqep: QEINT:0x0800
[ 0.678195] eqep 48304180.eqep: QUPRD:0x05f5e100
[ 0.678201] eqep 48304180.eqep: QEPCTL:0x009e write
[ 0.678207] eqep 48304180.eqep: QEPCTL:0x009e read
[ 0.678222] eqep 48304180.eqep: irq:140, clk_rate:100000000
[ 0.713065] libphy: Fixed MDIO Bus: probed
[ 0.713951] CAN device driver interface
[ 0.715260] c_can_platform 481cc000.can: c_can_platform device registered (regs=(ptrval), irq=42)
[ 0.716078] c_can_platform 481d0000.can: c_can_platform device registered (regs=(ptrval), irq=43)
[ 0.770857] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000
[ 0.770868] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
[ 0.771829] davinci_mdio: dt: updated phy_id[0] from phy_mask[fffffffe]
[ 0.773749] libphy: 4a101000.mdio: probed
[ 0.773771] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
[ 0.774577] cpsw 4a100000.ethernet: Detected MACID = f4:5e:ab:34:78:60
[ 0.774678] cpsw 4a100000.ethernet: initialized cpsw ale version 1.4
[ 0.774685] cpsw 4a100000.ethernet: ALE Table size 1024
[ 0.774716] cpsw 4a100000.ethernet: cpts: overflow check period 1250 (jiffies)
[ 0.776829] usbcore: registered new interface driver simcom_wwan
[ 0.777414] usbcore: registered new interface driver usb-storage
[ 0.777527] usbcore: registered new interface driver usbserial_generic
[ 0.777566] usbserial: USB Serial support registered for generic
[ 0.777599] usbcore: registered new interface driver option
[ 0.777627] usbserial: USB Serial support registered for GSM modem (1-port)
[ 0.780715] am335x-phy-driver 47401300.usb-phy: 47401300.usb-phy supply vcc not found, using dummy regulator
[ 0.780848] am335x-phy-driver 47401300.usb-phy: Linked as a consumer to regulator.0
[ 0.783752] am335x-phy-driver 47401b00.usb-phy: 47401b00.usb-phy supply vcc not found, using dummy regulator
[ 0.783912] am335x-phy-driver 47401b00.usb-phy: Linked as a consumer to regulator.0
[ 0.786955] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
[ 0.786989] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 1
[ 0.787273] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[ 0.787283] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.787290] usb usb1: Product: MUSB HDRC host driver
[ 0.787296] usb usb1: Manufacturer: Linux 4.19.31-bone-rt-r31 musb-hcd
[ 0.787302] usb usb1: SerialNumber: musb-hdrc.1
[ 0.787998] hub 1-0:1.0: USB hub found
[ 0.788050] hub 1-0:1.0: 1 port detected
[ 0.798456] omap_rtc 44e3e000.rtc: registered as rtc0
[ 0.799717] i2c /dev entries driver
[ 0.802608] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 0.803207] softdog: initialized. soft_noboot=0 soft_margin=60 sec soft_panic=0 (nowayout=0)
[ 0.806011] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)
[ 0.806024] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 0.806918] omap_hsmmc 48060000.mmc: Linked as a consumer to regulator.1
[ 0.834260] omap_hsmmc 481d8000.mmc: Linked as a consumer to regulator.1
[ 0.861153] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[ 0.861447] omap-aes 53500000.aes: will run requests pump with realtime priority
[ 0.863988] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[ 0.867826] hidraw: raw HID events driver (C) Jiri Kosina
[ 0.868367] usbcore: registered new interface driver usbhid
[ 0.868374] usbhid: USB HID core driver
[ 0.868700] remoteproc remoteproc0: wkup_m3 is available
[ 0.872767] gnss: GNSS driver registered with major 242
[ 0.878058] NET: Registered protocol family 10
[ 0.881658] Segment Routing with IPv6
[ 0.881770] mip6: Mobile IPv6
[ 0.881785] NET: Registered protocol family 17
[ 0.881809] can: controller area network core (rev 20170425 abi 9)
[ 0.881901] NET: Registered protocol family 29
[ 0.882028] Key type dns_resolver registered
[ 0.882034] mpls_gso: MPLS GSO support
[ 0.882273] ThumbEE CPU extension supported.
[ 0.882286] Registering SWP/SWPB emulation handler
[ 0.882295] omap_voltage_late_init: Voltage driver support not added
[ 0.890618] registered taskstats version 1
[ 0.890627] Loading compiled-in X.509 certificates
[ 0.891228] zswap: loaded using pool lzo/zbud
[ 0.893477] mmc0: host does not support reading read-only switch, assuming write-enable
[ 0.893911] Btrfs loaded, crc32c=crc32c-generic
[ 0.894013] AppArmor: AppArmor sha1 policy hashing enabled
[ 0.896375] mmc0: new high speed SDHC card at address aaaa
[ 0.903680] mmcblk0: mmc0:aaaa SB16G 14.8 GiB
[ 0.907141] mmcblk0: p1
[ 0.931608] mmc1: new high speed MMC card at address 0001
[ 0.932882] mmcblk1: mmc1:0001 S10004 3.56 GiB
[ 0.933420] mmcblk1boot0: mmc1:0001 S10004 partition 1 4.00 MiB
[ 0.933941] mmcblk1boot1: mmc1:0001 S10004 partition 2 4.00 MiB
[ 0.934198] mmcblk1rpmb: mmc1:0001 S10004 partition 3 4.00 MiB, chardev (244:0)
[ 0.935461] mmcblk1: p1
[ 1.060937] random: fast init done
[ 1.061180] tda998x 0-0070: found TDA19988
[ 1.064134] tilcdc 4830e000.lcdc: bound 0-0070 (ops 0xc0982540)
[ 1.064154] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 1.064159] [drm] No driver support for vblank timestamp query.
[ 1.168120] Console: switching to colour frame buffer device 128x37
[ 1.184241] tilcdc 4830e000.lcdc: fb0: DRM emulated frame buffer device
[ 1.184915] [drm] Initialized tilcdc 1.0.0 20121205 for 4830e000.lcdc on minor 0
[ 1.194888] usb 1-1: new high-speed USB device number 2 using musb-hdrc
[ 1.195952] tps6521x_pwrbutton tps65217-pwrbutton: DMA mask not set
[ 1.196614] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/tps65217-pwrbutton/input/input0
[ 1.197088] tps65217 0-0024: TPS65217 ID 0xe version 1.2
[ 1.197792] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 1.197872] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 1.199341] remoteproc remoteproc0: powering up wkup_m3
[ 1.199359] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217168
[ 1.201437] remoteproc remoteproc0: remote processor wkup_m3 is now up
[ 1.201480] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x193
[ 1.202737] cpu cpu0: Linked as a consumer to regulator.3
[ 1.202943] cpu cpu0: Dropping the link to regulator.3
[ 1.203336] cpu cpu0: Linked as a consumer to regulator.3
[ 1.205630] asoc-simple-card sound: i2s-hifi <-> 48038000.mcasp mapping ok
[ 1.205664] asoc-simple-card sound: ASoC: no DMI vendor name!
[ 1.208285] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
[ 1.209656] ALSA device list:
[ 1.209664] #0: TI BeagleBone Black
[ 1.215027] EXT4-fs (mmcblk0p1): INFO: recovery required on readonly filesystem
[ 1.215037] EXT4-fs (mmcblk0p1): write access will be enabled during recovery
[ 1.343260] usb 1-1: New USB device found, idVendor=0451, idProduct=8142, bcdDevice= 1.00
[ 1.343273] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=1
[ 1.343280] usb 1-1: SerialNumber: 19000861BD59
[ 1.344262] hub 1-1:1.0: USB hub found
[ 1.344360] hub 1-1:1.0: 4 ports detected
[ 1.630873] usb 1-1.1: new high-speed USB device number 3 using musb-hdrc
[ 1.736424] usb 1-1.1: New USB device found, idVendor=2109, idProduct=2813, bcdDevice= 2.21
[ 1.736439] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1.736446] usb 1-1.1: Product: USB2.0 Hub
[ 1.736453] usb 1-1.1: Manufacturer: VIA Labs, Inc.
[ 1.737872] hub 1-1.1:1.0: USB hub found
[ 1.738520] hub 1-1.1:1.0: 4 ports detected
[ 1.830839] usb 1-1.2: new high-speed USB device number 4 using musb-hdrc
[ 1.942881] usb 1-1.2: New USB device found, idVendor=1e0e, idProduct=9001, bcdDevice= 3.18
[ 1.942894] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1.942901] usb 1-1.2: Product: SimTech, Incorporated
[ 1.942908] usb 1-1.2: Manufacturer: SimTech, Incorporated
[ 1.942914] usb 1-1.2: SerialNumber: 0123456789ABCDEF
[ 1.946078] simcom_wwan: probe of 1-1.2:1.0 failed with error -22
[ 1.946542] option 1-1.2:1.0: GSM modem (1-port) converter detected
[ 1.947433] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0
[ 1.947869] simcom_wwan: probe of 1-1.2:1.1 failed with error -22
[ 1.948485] option 1-1.2:1.1: GSM modem (1-port) converter detected
[ 1.948983] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB1
[ 1.949738] simcom_wwan: probe of 1-1.2:1.2 failed with error -22
[ 1.950315] option 1-1.2:1.2: GSM modem (1-port) converter detected
[ 1.950931] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB2
[ 1.951717] simcom_wwan: probe of 1-1.2:1.3 failed with error -22
[ 1.952305] option 1-1.2:1.3: GSM modem (1-port) converter detected
[ 1.952832] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB3
[ 1.953595] simcom_wwan: probe of 1-1.2:1.4 failed with error -22
[ 1.954194] option 1-1.2:1.4: GSM modem (1-port) converter detected
[ 1.954652] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB4
[ 1.955668] simcom usbnet bind here
[ 1.957459] simcom_wwan 1-1.2:1.5 wwan0: register 'simcom_wwan' at usb-musb-hdrc.1-1.2, SIMCOM wwan/QMI device, d6:d9:b9:97:18:4e
[ 2.050845] usb 1-1.1.1: new full-speed USB device number 5 using musb-hdrc
[ 2.164234] usb 1-1.1.1: New USB device found, idVendor=0484, idProduct=5750, bcdDevice= 2.00
[ 2.164246] usb 1-1.1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2.164253] usb 1-1.1.1: Product: 7H Custom Human interface
[ 2.164392] usb 1-1.1.1: Manufacturer: STMicroelectronics
[ 2.164399] usb 1-1.1.1: SerialNumber: 677F5AB80137
[ 2.180465] input: STMicroelectronics 7H Custom Human interface Touchscreen as /devices/platform/ocp/47400000.usb/47401c00.usb/musb-hdrc.1/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1:1.0/0003:0484:5750.0001/input/input1
[ 2.181018] hid-generic 0003:0484:5750.0001: input,hiddev0,hidraw0: USB HID v1.11 Device [STMicroelectronics 7H Custom Human interface] on usb-musb-hdrc.1-1.1.1/input0
[ 2.314814] usb 1-1.1.2: new low-speed USB device number 6 using musb-hdrc
[ 2.471028] usb 1-1.1.2: New USB device found, idVendor=062a, idProduct=0003, bcdDevice= 0.00
[ 2.471041] usb 1-1.1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2.471048] usb 1-1.1.2: Product: Optical Mouse
[ 2.471054] usb 1-1.1.2: Manufacturer: MosArt
[ 2.476924] input: MosArt Optical Mouse as /devices/platform/ocp/47400000.usb/47401c00.usb/musb-hdrc.1/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0/0003:062A:0003.0002/input/input3
[ 2.477199] hid-generic 0003:062A:0003.0002: input,hidraw1: USB HID v1.10 Mouse [MosArt Optical Mouse] on usb-musb-hdrc.1-1.1.2/input0
[ 2.517300] EXT4-fs (mmcblk0p1): orphan cleanup on readonly fs
[ 2.517870] EXT4-fs (mmcblk0p1): 3 orphan inodes deleted
[ 2.517879] EXT4-fs (mmcblk0p1): recovery complete
[ 2.541709] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
[ 2.541798] VFS: Mounted root (ext4 filesystem) readonly on device 179:1.
[ 2.550580] devtmpfs: mounted
[ 2.554650] Freeing unused kernel memory: 1024K
[ 2.555189] Run /sbin/init as init process
[ 2.610868] usb 1-1.1.4: new low-speed USB device number 7 using musb-hdrc
[ 2.768461] usb 1-1.1.4: New USB device found, idVendor=046d, idProduct=c31c, bcdDevice=64.01
[ 2.768476] usb 1-1.1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2.768483] usb 1-1.1.4: Product: USB Keyboard
[ 2.768490] usb 1-1.1.4: Manufacturer: Logitech
[ 2.777623] input: Logitech USB Keyboard as /devices/platform/ocp/47400000.usb/47401c00.usb/musb-hdrc.1/usb1/1-1/1-1.1/1-1.1.4/1-1.1.4:1.0/0003:046D:C31C.0003/input/input4
[ 2.835754] hid-generic 0003:046D:C31C.0003: input,hidraw2: USB HID v1.10 Keyboard [Logitech USB Keyboard] on usb-musb-hdrc.1-1.1.4/input0
[ 2.846010] input: Logitech USB Keyboard Consumer Control as /devices/platform/ocp/47400000.usb/47401c00.usb/musb-hdrc.1/usb1/1-1/1-1.1/1-1.1.4/1-1.1.4:1.1/0003:046D:C31C.0004/input/input5
[ 2.900213] systemd[1]: System time before build time, advancing clock.
[ 2.903096] input: Logitech USB Keyboard System Control as /devices/platform/ocp/47400000.usb/47401c00.usb/musb-hdrc.1/usb1/1-1/1-1.1/1-1.1.4/1-1.1.4:1.1/0003:046D:C31C.0004/input/input6
[ 2.903390] hid-generic 0003:046D:C31C.0004: input,hidraw3: USB HID v1.10 Device [Logitech USB Keyboard] on usb-musb-hdrc.1-1.1.4/input1
[ 3.011237] random: systemd: uninitialized urandom read (16 bytes read)
[ 3.014345] random: systemd: uninitialized urandom read (16 bytes read)
[ 3.025829] systemd[1]: systemd 232 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
[ 3.026505] systemd[1]: Detected architecture arm.
[ 3.029990] systemd[1]: Set hostname to <arm>.
[ 3.222100] random: systemd-gpt-aut: uninitialized urandom read (16 bytes read)
[ 3.626490] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[ 3.627140] systemd[1]: Reached target Swap.
[ 3.627310] systemd[1]: Reached target Remote File Systems.
[ 3.627761] systemd[1]: Listening on Syslog Socket.
[ 3.628260] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[ 3.629877] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[ 3.630380] systemd[1]: Listening on udev Control Socket.
[ 4.278983] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro
[ 5.341034] systemd-journald[153]: Received request to flush runtime journal from PID 1
[ 8.905679] Bluetooth: Core ver 2.22
[ 8.905821] NET: Registered protocol family 31
[ 8.905828] Bluetooth: HCI device and connection manager initialized
[ 8.905858] Bluetooth: HCI socket layer initialized
[ 8.905871] Bluetooth: L2CAP socket layer initialized
[ 8.905929] Bluetooth: SCO socket layer initialized
[ 9.519225] net eth0: initializing cpsw version 1.12 (0)
[ 9.592187] SMSC LAN8710/LAN8720 4a101000.mdio:00: attached PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=4a101000.mdio:00, irq=POLL)
[ 9.624194] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 12.704495] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 12.704563] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 13.020127] 8021q: 802.1Q VLAN Support v1.8
[ 13.020210] 8021q: adding VLAN 0 to HW filter on device eth0
[ 16.393822] using random self ethernet address
[ 16.393837] using random host ethernet address
[ 16.570269] using random self ethernet address
[ 16.570283] using random host ethernet address
[ 16.921828] usb0: HOST MAC f4:5e:ab:34:78:61
[ 16.924184] usb0: MAC f4:5e:ab:34:78:62
[ 16.935324] usb1: HOST MAC f4:5e:ab:34:78:64
[ 16.935704] usb1: MAC f4:5e:ab:34:78:65
[ 17.145025] NET: Registered protocol family 3
[ 17.256855] NET: Registered protocol family 5
[ 17.741225] IPv6: ADDRCONF(NETDEV_UP): usb1: link is not ready
[ 24.794612] input: STMicroelectronics 7H Custom Human interface as /devices/platform/ocp/47400000.usb/47401c00.usb/musb-hdrc.1/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1:1.0/0003:0484:5750.0001/input/input7
[ 24.811336] hid-multitouch 0003:0484:5750.0001: input,hiddev0,hidraw0: USB HID v1.11 Device [STMicroelectronics 7H Custom Human interface] on usb-musb-hdrc.1-1.1.1/input0
[ 66.281326] EXT4-fs (mmcblk1p1): recovery complete
[ 66.284728] EXT4-fs (mmcblk1p1): mounted filesystem with ordered data mode. Opts: errors=remount-ro
[ 145.541522] random: crng init done
[ 145.541541] random: 7 urandom warning(s) missed due to ratelimiting
debian@arm:~$
Please let me how to make the screen always on.