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USB low-full-high speed peripherals

faM_4540176
Level 1
Level 1

i bought a light engine and it consists of cypress dual channel module. i use raspbian stretch lite. the problem is that when i attach the device with usb cable to raspberry pi, "lsusb" shows the device but no there is no node created in "/dev" like: /dev/ttyUSB0 . i installed CyUSBSerial_SDK_Linux, nothing happened. "dmesg" command shows the device is connected but no tty is bonded.

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YatheeshD_36
Moderator
Moderator 750 replies posted 500 replies posted 250 solutions authored
Moderator

Hello,

Yes, the nodes are created only in CDC mode. When using vendor mode (I2C or SPI) libusb is used. As I mentioned earlier, please refer to the TestUtility.c provided with the Linux SDK CyUSBSerial_SDK_Linux for an example of host application to communicate with the I2C interface.

Best Regards,

Yatheesh

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6 Replies
Rashi_Vatsa
Moderator
Moderator 500 solutions authored 1000 replies posted 750 replies posted
Moderator

Hello,

Please refer to this thread Need some help on CY7C65215 Cypress IC module usb-spi interface

Please attach a screenshot where the Kernel configuration is displayed.

Regards,
Rashi
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faM_4540176
Level 1
Level 1

as i use raspbian stretch lite, i just modprobe configs, and here is the part belongs to cypress:

pastedImage_0.png

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faM_4540176
Level 1
Level 1

recent changes happened. i used Cypress usb-serial configuration utility and changed SCB0 and SCB1 from I2C and SPI to UART-CDC. now, when i connect the device to my pi, both ports is bond to ACM0 and ACM1. when i run "screen" command, like: "screen /dev/ttyACM1 9600,cs8", nothing happened. i can not send command to device. i changed and tested some options like "baud rate" "number of pins" but couldn't identify the problem.

here is dmesg results:

pi@raspberrypi:~ $ dmesg

[    0.000000] Booting Linux on physical CPU 0x0

[    0.000000] Linux version 4.19.57-v7+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1244 SMP Thu Jul 4 18:45:25 BST 2019

[    0.000000] CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7), cr=10c5383d

[    0.000000] CPU: div instructions available: patching division code

[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache

[    0.000000] OF: fdt: Machine model: Raspberry Pi 3 Model B Plus Rev 1.3

[    0.000000] Memory policy: Data cache writealloc

[    0.000000] cma: Reserved 8 MiB at 0x37800000

[    0.000000] On node 0 totalpages: 229376

[    0.000000]   Normal zone: 2016 pages used for memmap

[    0.000000]   Normal zone: 0 pages reserved

[    0.000000]   Normal zone: 229376 pages, LIFO batch:63

[    0.000000] random: get_random_bytes called from start_kernel+0xac/0x4b4 with crng_init=0

[    0.000000] percpu: Embedded 17 pages/cpu s39488 r8192 d21952 u69632

[    0.000000] pcpu-alloc: s39488 r8192 d21952 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: 227360

[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000  dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=PARTUUID=c9ad3800-02 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: 886308K/917504K available (8192K kernel code, 629K rwdata, 2176K rodata, 1024K init, 821K bss, 23004K reserved, 8192K cma-reserved)

[    0.000000] Virtual kernel memory layout:

                   vector  : 0xffff0000 - 0xffff1000   (   4 kB)

                   fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)

                   vmalloc : 0xb8800000 - 0xff800000   (1136 MB)

                   lowmem  : 0x80000000 - 0xb8000000   ( 896 MB)

                   modules : 0x7f000000 - 0x80000000   (  16 MB)

                     .text : 0x(ptrval) - 0x(ptrval)   (9184 kB)

                     .init : 0x(ptrval) - 0x(ptrval)   (1024 kB)

                     .data : 0x(ptrval) - 0x(ptrval)   ( 630 kB)

                      .bss : 0x(ptrval) - 0x(ptrval)   ( 822 kB)

[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1

[    0.000000] ftrace: allocating 26351 entries in 78 pages

[    0.000000] rcu: Hierarchical RCU implementation.

[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16

[    0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys).

[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns

[    0.000007] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns

[    0.000023] Switching to timer-based delay loop, resolution 52ns

[    0.000285] Console: colour dummy device 80x30

[    0.000903] console [tty1] enabled

[    0.000959] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)

[    0.001005] pid_max: default: 32768 minimum: 301

[    0.001361] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)

[    0.001397] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)

[    0.002331] CPU: Testing write buffer coherency: ok

[    0.002817] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000

[    0.003492] Setting up static identity map for 0x100000 - 0x10003c

[    0.003662] rcu: Hierarchical SRCU implementation.

[    0.004485] smp: Bringing up secondary CPUs ...

[    0.005348] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001

[    0.006279] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002

[    0.007146] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003

[    0.007267] smp: Brought up 1 node, 4 CPUs

[    0.007349] SMP: Total of 4 processors activated (153.60 BogoMIPS).

[    0.007373] CPU: All CPU(s) started in HYP mode.

[    0.007394] CPU: Virtualization extensions available.

[    0.008375] devtmpfs: initialized

[    0.021361] VFP support v0.3: implementor 41 architecture 3 part 40 variant 3 rev 4

[    0.021639] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns

[    0.021687] futex hash table entries: 1024 (order: 4, 65536 bytes)

[    0.022293] pinctrl core: initialized pinctrl subsystem

[    0.023170] NET: Registered protocol family 16

[    0.026126] DMA: preallocated 1024 KiB pool for atomic coherent allocations

[    0.031798] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.

[    0.031835] hw-breakpoint: maximum watchpoint size is 8 bytes.

[    0.032055] Serial: AMBA PL011 UART driver

[    0.034364] bcm2835-mbox 3f00b880.mailbox: mailbox enabled

[    0.069189] bcm2835-dma 3f007000.dma: DMA legacy API manager at (ptrval), dmachans=0x1

[    0.071117] SCSI subsystem initialized

[    0.071362] usbcore: registered new interface driver usbfs

[    0.071445] usbcore: registered new interface driver hub

[    0.071557] usbcore: registered new device driver usb

[    0.090307] raspberrypi-firmware soc:firmware: Attached to firmware from 2019-07-09 14:42, variant start_x

[    0.100136] raspberrypi-firmware soc:firmware: Firmware hash is 6c3fe3f096a93de3b34252ad98cdccadeb534be2

[    0.111803] clocksource: Switched to clocksource arch_sys_counter

[    0.200626] VFS: Disk quotas dquot_6.6.0

[    0.200738] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)

[    0.200950] FS-Cache: Loaded

[    0.201175] CacheFiles: Loaded

[    0.211182] NET: Registered protocol family 2

[    0.212010] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)

[    0.212074] TCP established hash table entries: 8192 (order: 3, 32768 bytes)

[    0.212206] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)

[    0.212411] TCP: Hash tables configured (established 8192 bind 8192)

[    0.212572] UDP hash table entries: 512 (order: 2, 16384 bytes)

[    0.212639] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)

[    0.212965] NET: Registered protocol family 1

[    0.213560] RPC: Registered named UNIX socket transport module.

[    0.213587] RPC: Registered udp transport module.

[    0.213609] RPC: Registered tcp transport module.

[    0.213630] RPC: Registered tcp NFSv4.1 backchannel transport module.

[    0.215253] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 7 counters available

[    0.218243] Initialise system trusted keyrings

[    0.218451] workingset: timestamp_bits=14 max_order=18 bucket_order=4

[    0.228294] FS-Cache: Netfs 'nfs' registered for caching

[    0.228881] NFS: Registering the id_resolver key type

[    0.228926] Key type id_resolver registered

[    0.228948] Key type id_legacy registered

[    0.228979] nfs4filelayout_init: NFSv4 File Layout Driver Registering...

[    0.231262] Key type asymmetric registered

[    0.231292] Asymmetric key parser 'x509' registered

[    0.231357] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)

[    0.231538] io scheduler noop registered

[    0.231563] io scheduler deadline registered (default)

[    0.231758] io scheduler cfq registered

[    0.231782] io scheduler mq-deadline registered (default)

[    0.231867] io scheduler kyber registered

[    0.234098] bcm2708_fb soc:fb: FB found 1 display(s)

[    0.243590] Console: switching to colour frame buffer device 82x26

[    0.250410] bcm2708_fb soc:fb: Registered framebuffer for display 0, size 656x416

[    0.257157] bcm2835-rng 3f104000.rng: hwrng registered

[    0.259832] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)

[    0.265153] vc-sm: Videocore shared memory driver

[    0.267897] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000

[    0.283762] brd: module loaded

[    0.296332] loop: module loaded

[    0.299371] Loading iSCSI transport class v2.0-870.

[    0.302571] libphy: Fixed MDIO Bus: probed

[    0.305079] usbcore: registered new interface driver lan78xx

[    0.307526] usbcore: registered new interface driver smsc95xx

[    0.309872] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)

[    0.340175] dwc_otg 3f980000.usb: base=(ptrval)

[    0.542810] Core Release: 2.80a

[    0.545181] Setting default values for core params

[    0.547615] Finished setting default values for core params

[    0.750343] Using Buffer DMA mode

[    0.752740] Periodic Transfer Interrupt Enhancement - disabled

[    0.755157] Multiprocessor Interrupt Enhancement - disabled

[    0.757521] OTG VER PARAM: 0, OTG VER FLAG: 0

[    0.759859] Dedicated Tx FIFOs mode

[    0.762578] WARN::dwc_otg_hcd_init:1045: FIQ DMA bounce buffers: virt = b7914000 dma = 0xf7914000 len=9024

[    0.767142] FIQ FSM acceleration enabled for :

               Non-periodic Split Transactions

               Periodic Split Transactions

               High-Speed Isochronous Endpoints

               Interrupt/Control Split Transaction hack enabled

[    0.778022] dwc_otg: Microframe scheduler enabled

[    0.778083] WARN::hcd_init_fiq:457: FIQ on core 1

[    0.780309] WARN::hcd_init_fiq:458: FIQ ASM at 80650d3c length 36

[    0.782523] WARN::hcd_init_fiq:497: MPHI regs_base at b8810000

[    0.784780] dwc_otg 3f980000.usb: DWC OTG Controller

[    0.787043] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1

[    0.789366] dwc_otg 3f980000.usb: irq 56, io mem 0x00000000

[    0.791673] Init: Port Power? op_state=1

[    0.793934] Init: Power Port (0)

[    0.796354] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19

[    0.800858] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[    0.803299] usb usb1: Product: DWC OTG Controller

[    0.805667] usb usb1: Manufacturer: Linux 4.19.57-v7+ dwc_otg_hcd

[    0.808089] usb usb1: SerialNumber: 3f980000.usb

[    0.811039] hub 1-0:1.0: USB hub found

[    0.813332] hub 1-0:1.0: 1 port detected

[    0.816095] dwc_otg: FIQ enabled

[    0.816102] dwc_otg: NAK holdoff enabled

[    0.816107] dwc_otg: FIQ split-transaction FSM enabled

[    0.816118] Module dwc_common_port init

[    0.816400] usbcore: registered new interface driver usb-storage

[    0.818853] mousedev: PS/2 mouse device common for all mice

[    0.822021] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer

[    0.824631] bcm2835-cpufreq: min=600000 max=1400000

[    0.827432] sdhci: Secure Digital Host Controller Interface driver

[    0.829838] sdhci: Copyright(c) Pierre Ossman

[    0.832631] mmc-bcm2835 3f300000.mmcnr: could not get clk, deferring probe

[    0.835532] sdhost-bcm2835 3f202000.mmc: could not get clk, deferring probe

[    0.838199] sdhci-pltfm: SDHCI platform and OF driver helper

[    0.842255] ledtrig-cpu: registered to indicate activity on CPUs

[    0.844982] hidraw: raw HID events driver (C) Jiri Kosina

[    0.847749] usbcore: registered new interface driver usbhid

[    0.850373] usbhid: USB HID core driver

[    0.853697] vchiq: vchiq_init_state: slot_zero = (ptrval), is_master = 0

[    0.857829] [vc_sm_connected_init]: start

[    0.866604] [vc_sm_connected_init]: end - returning 0

[    0.870133] Initializing XFRM netlink socket

[    0.872594] NET: Registered protocol family 17

[    0.875097] Key type dns_resolver registered

[    0.877936] Registering SWP/SWPB emulation handler

[    0.881038] registered taskstats version 1

[    0.883474] Loading compiled-in X.509 certificates

[    0.893146] uart-pl011 3f201000.serial: cts_event_workaround enabled

[    0.895676] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 81, base_baud = 0) is a PL011 rev2

[    0.902547] mmc-bcm2835 3f300000.mmcnr: mmc_debug:0 mmc_debug2:0

[    0.905087] mmc-bcm2835 3f300000.mmcnr: DMA channel allocated

[    0.933692] sdhost: log_buf @ (ptrval) (f7913000)

[    0.971089] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)

[    0.975093] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)

[    0.978950] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)

[    0.983951] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)

[    0.986073] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)

[    0.989451] of_cfs_init

[    0.991574] of_cfs_init: OK

[    0.994098] Waiting for root device PARTUUID=c9ad3800-02...

[    1.031927] Indeed it is in host mode hprt0 = 00021501

[    1.101821] mmc0: host does not support reading read-only switch, assuming write-enable

[    1.104360] random: fast init done

[    1.109263] mmc0: new high speed SDHC card at address 0001

[    1.112731] mmcblk0: mmc0:0001 SPCC 7.38 GiB

[    1.117983]  mmcblk0: p1 p2

[    1.144748] mmc1: new high speed SDIO card at address 0001

[    1.146949] EXT4-fs (mmcblk0p2): INFO: recovery required on readonly filesystem

[    1.149101] EXT4-fs (mmcblk0p2): write access will be enabled during recovery

[    1.241867] usb 1-1: new high-speed USB device number 2 using dwc_otg

[    1.244193] Indeed it is in host mode hprt0 = 00001101

[    1.410742] EXT4-fs (mmcblk0p2): recovery complete

[    1.431683] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)

[    1.436310] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.

[    1.450723] devtmpfs: mounted

[    1.458703] Freeing unused kernel memory: 1024K

[    1.461644] Run /sbin/init as init process

[    1.482141] usb 1-1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3

[    1.487401] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0

[    1.490771] hub 1-1:1.0: USB hub found

[    1.493530] hub 1-1:1.0: 4 ports detected

[    1.811856] usb 1-1.1: new high-speed USB device number 3 using dwc_otg

[    1.942140] usb 1-1.1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3

[    1.947531] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0

[    1.951062] hub 1-1.1:1.0: USB hub found

[    1.953967] hub 1-1.1:1.0: 3 ports detected

[    2.276822] systemd[1]: System time before build time, advancing clock.

[    2.309611] dwc_otg_handle_wakeup_detected_intr lxstate = 2

[    2.439077] NET: Registered protocol family 10

[    2.443208] Segment Routing with IPv6

[    2.507830] 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)

[    2.517266] systemd[1]: Detected architecture arm.

[    2.540751] systemd[1]: Set hostname to <raspberrypi>.

[    2.558851] systemd[1]: Failed to bump fs.file-max, ignoring: Invalid argument

[    2.831883] usb 1-1.1.1: new high-speed USB device number 4 using dwc_otg

[    2.962374] usb 1-1.1.1: New USB device found, idVendor=0424, idProduct=7800, bcdDevice= 3.00

[    2.967925] usb 1-1.1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0

[    2.983441] systemd[1]: File /lib/systemd/system/systemd-journald.service:12 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.

[    2.992428] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)

[    3.238227] lan78xx 1-1.1.1:1.0 (unnamed net_device) (uninitialized): No External EEPROM. Setting MAC Speed

[    3.245601] libphy: lan78xx-mdiobus: probed

[    3.283532] lan78xx 1-1.1.1:1.0 (unnamed net_device) (uninitialized): int urb period 64

[    3.642100] random: systemd: uninitialized urandom read (16 bytes read)

[    3.656254] random: systemd: uninitialized urandom read (16 bytes read)

[    3.663734] systemd[1]: Created slice User and Session Slice.

[    3.671193] random: systemd: uninitialized urandom read (16 bytes read)

[    3.675125] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.

[    3.685770] systemd[1]: Listening on initctl Compatibility Named Pipe.

[    3.693298] systemd[1]: Listening on fsck to fsckd communication Socket.

[    4.523514] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)

[    4.644301] systemd-journald[116]: Received request to flush runtime journal from PID 1

[    5.327710] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.

[    5.330483] bcm2835_vc_sm_cma_probe: Videocore shared memory driver

[    5.330500] [vc_sm_connected_init]: start

[    5.338153] media: Linux media interface: v0.10

[    5.339047] [vc_sm_connected_init]: installed successfully

[    5.386317] videodev: Linux video capture interface: v2.00

[    5.520348] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.

[    5.522899] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.

[    5.582834] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.

[    5.586828] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.

[    5.594644] bcm2835_audio soc:audio: card created with 8 channels

[    5.600941] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.

[    5.744957] cfg80211: Loading compiled-in X.509 certificates for regulatory database

[    5.865643] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'

[    5.965430] brcmfmac: F1 signature read @0x18000000=0x15264345

[    5.982557] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6

[    5.983388] usbcore: registered new interface driver brcmfmac

[    6.219607] bcm2835-codec bcm2835-codec: Device registered as /dev/video10

[    6.219622] bcm2835-codec bcm2835-codec: Loaded V4L2 decode

[    6.223281] random: crng init done

[    6.223296] random: 7 urandom warning(s) missed due to ratelimiting

[    6.231488] bcm2835-codec bcm2835-codec: Device registered as /dev/video11

[    6.231502] bcm2835-codec bcm2835-codec: Loaded V4L2 encode

[    6.239519] bcm2835-codec bcm2835-codec: Device registered as /dev/video12

[    6.239533] bcm2835-codec bcm2835-codec: Loaded V4L2 isp

[    6.245808] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6

[    6.301961] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Feb 27 2018 03:15:32 version 7.45.154 (r684107 CY) FWID 01-4fbe0b04

[    8.035238] uart-pl011 3f201000.serial: no DMA platform data

[    8.234675] 8021q: 802.1Q VLAN Support v1.8

[    8.558167] Adding 102396k swap on /var/swap.  Priority:-2 extents:1 across:102396k SSFS

[    8.592255] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

[    8.592292] brcmfmac: power management disabled

[    8.857607] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready

[    8.857615] 8021q: adding VLAN 0 to HW filter on device eth0

[    8.864102] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

[   14.951005] Bluetooth: Core ver 2.22

[   14.951100] NET: Registered protocol family 31

[   14.951106] Bluetooth: HCI device and connection manager initialized

[   14.951127] Bluetooth: HCI socket layer initialized

[   14.951139] Bluetooth: L2CAP socket layer initialized

[   14.951177] Bluetooth: SCO socket layer initialized

[   14.972965] Bluetooth: HCI UART driver ver 2.3

[   14.972973] Bluetooth: HCI UART protocol H4 registered

[   14.973015] Bluetooth: HCI UART protocol Three-wire (H5) registered

[   14.973120] Bluetooth: HCI UART protocol Broadcom registered

[   15.244119] Bluetooth: BNEP (Ethernet Emulation) ver 1.3

[   15.244127] Bluetooth: BNEP filters: protocol multicast

[   15.244139] Bluetooth: BNEP socket layer initialized

[   65.551856] usb 1-1.2: new full-speed USB device number 5 using dwc_otg

[   65.688883] usb 1-1.2: New USB device found, idVendor=04b4, idProduct=0005, bcdDevice= 0.00

[   65.688898] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0

[   65.688908] usb 1-1.2: Product: USB-Serial (Dual Channel)

[   65.688918] usb 1-1.2: Manufacturer: Cypress Semiconductor

[   65.754244] cdc_acm 1-1.2:1.0: ttyACM0: USB ACM device

[   65.756377] cdc_acm 1-1.2:1.2: ttyACM1: USB ACM device

[   65.757372] usbcore: registered new interface driver cdc_acm

[   65.757381] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

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YatheeshD_36
Moderator
Moderator 750 replies posted 500 replies posted 250 solutions authored
Moderator

Hello,

In you application the USB-Serial Device is configured to vendor SPI/I2C class (PID 00A), only the devices configured as CDC class (eg UART CDC mode) which are bound to Linux CDC ACM driver will create a node under /dev/ttyACM and you can communicate with it using applications such as minicom (similar to teraterm in windows). Refer to   Testing a USB-Serial Bridge Controller Configured as USB-UART with Linux® – KBA92551 .

Can you please let me know how you want to communicate with the device? You can use the TestUtility.c application as well.

You can install the CyUSBSerial_SDK_Linux from https://www.cypress.com/documentation/software-and-drivers/usb-serial-software-development-kit  and run the Test utility.

Please refer to the README.txt file in the path : installation directory-> CyUSBSerial_SDK_Linux -> linux -> testUtility on how to use the testUtility.

Best Regards,

Yatheesh

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faM_4540176
Level 1
Level 1

i just want to send i2c command to the device, for example "\x01\x52\x02". for this purpose i need to send commands to the /dev/tty* node. in default gates settings in spi and i2c mode, the tty* node is note created. the only way that the nodes create is to set the ports as UART/CDC but then minicom or screen shows nothing and sent commands not working.

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YatheeshD_36
Moderator
Moderator 750 replies posted 500 replies posted 250 solutions authored
Moderator

Hello,

Yes, the nodes are created only in CDC mode. When using vendor mode (I2C or SPI) libusb is used. As I mentioned earlier, please refer to the TestUtility.c provided with the Linux SDK CyUSBSerial_SDK_Linux for an example of host application to communicate with the I2C interface.

Best Regards,

Yatheesh

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