尊敬的技術(shù)支持:

????您好!

????最近在使用貴司的CH334R，但在嵌入式 linux中無法正確枚舉CH334及其級(jí)聯(lián)的設(shè)備，請(qǐng)問使用CH334R是需要在內(nèi)核中開啟額外的驅(qū)動(dòng)嗎? 還是有其他原因呢?

????以下是我的原理圖:

????

已解決, 是因?yàn)榫д衿ヅ潆娙莶粚?duì), 導(dǎo)致晶振不起振

又來新問題啦, CH334R是否需要額外的linux驅(qū)動(dòng)呢??

您好，CH334不需要額外的Linux驅(qū)動(dòng)的。直接使用系統(tǒng)自帶的通用hub驅(qū)動(dòng)即可。若您這邊有技術(shù)問題，可以直接描述下當(dāng)前遇到的問題。

在linux 內(nèi)核初始化階段 約50%的概率 會(huì)報(bào)device?descriptor?read/64,?error?-110

在linux 內(nèi)核初始化階段 約50%的概率 會(huì)報(bào)

device?descriptor?read/64,?error?-110

我通過CH334外接了2個(gè)USB設(shè)備, 有時(shí)候兩個(gè)都初始化成功, 有時(shí)候丟一個(gè),有時(shí)候丟兩個(gè).

如何解決上述問題呢?

下面是所有boot部分的log

[? ? 0.000000] Booting Linux on physical CPU 0x0

[? ? 0.000000] Linux version 6.0.1+ (fuxiaoer@DESKTOP-ICQ2N2B) (arm-none-linux-gnueabihf-gcc (Arm GNU Toolchain 12.2.Rel1 (Build arm-12.24)) 12.2.1 20221205, GNU ld (Arm GNU Toolchain 12.2.Rel1 (Build arm-12.24)) 2.39.0.20221210) #38 SMP Mon Mar 13 18:00:25 CST 2023

[? ? 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d

[? ? 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: MangoPi MQ-Dual

[? ? 0.000000] Memory policy: Data cache writealloc

[? ? 0.000000] cma: Reserved 16 MiB at 0x47000000

[? ? 0.000000] Zone ranges:

[? ? 0.000000]? ?Normal? ?[mem 0x0000000040000000-0x0000000047ffffff]

[? ? 0.000000]? ?HighMem? empty

[? ? 0.000000] Movable zone start for each node

[? ? 0.000000] Early memory node ranges

[? ? 0.000000]? ?node? ?0: [mem 0x0000000040000000-0x0000000047ffffff]

[? ? 0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x0000000047ffffff]

[? ? 0.000000] percpu: Embedded 11 pages/cpu s15508 r8192 d21356 u45056

[? ? 0.000000] Built 1 zonelists, mobility grouping on.? Total pages: 32512

[? ? 0.000000] Kernel command line: mem=128M root=/dev/mmcblk0p2 rootfstype=ext4 init=/sbin/init rw rootwait console=ttyS4,115200

[? ? 0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear)

[? ? 0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear)

[? ? 0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off

[? ? 0.000000] Memory: 99812K/131072K available (8192K kernel code, 949K rwdata, 2144K rodata, 1024K init, 269K bss, 14876K reserved, 16384K cma-reserved, 0K highmem)

[? ? 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1

[? ? 0.000000] rcu: Hierarchical RCU implementation.

[? ? 0.000000] rcu:? ? ?RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.

[? ? 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.

[? ? 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2

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

[? ? 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.

[? ? 0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (phys).

[? ? 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns

[? ? 0.000001] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns

[? ? 0.000012] Switching to timer-based delay loop, resolution 41ns

[? ? 0.000187] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns

[? ? 0.000668] Console: colour dummy device 80x30

[? ? 0.000709] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)

[? ? 0.000724] pid_max: default: 32768 minimum: 301

[? ? 0.000874] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)

[? ? 0.000889] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)

[? ? 0.001434] CPU: Testing write buffer coherency: ok

[? ? 0.001733] /cpus/cpu@0 missing clock-frequency property

[? ? 0.001764] /cpus/cpu@1 missing clock-frequency property

[? ? 0.001773] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000

[? ? 0.002517] Setting up static identity map for 0x40100000 - 0x40100060

[? ? 0.002658] rcu: Hierarchical SRCU implementation.

[? ? 0.002664] rcu:? ? ?Max phase no-delay instances is 1000.

[? ? 0.003185] smp: Bringing up secondary CPUs ...

[? ? 0.003860] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001

[? ? 0.003981] smp: Brought up 1 node, 2 CPUs

[? ? 0.003991] SMP: Total of 2 processors activated (96.00 BogoMIPS).

[? ? 0.003999] CPU: All CPU(s) started in SVC mode.

[? ? 0.004505] devtmpfs: initialized

[? ? 0.008558] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5

[? ? 0.008759] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns

[? ? 0.008781] futex hash table entries: 512 (order: 3, 32768 bytes, linear)

[? ? 0.009349] pinctrl core: initialized pinctrl subsystem

[? ? 0.010730] NET: Registered PF_NETLINK/PF_ROUTE protocol family

[? ? 0.011768] DMA: preallocated 256 KiB pool for atomic coherent allocations

[? ? 0.012614] thermal_sys: Registered thermal governor 'step_wise'

[? ? 0.012846] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.

[? ? 0.012858] hw-breakpoint: maximum watchpoint size is 8 bytes.

[? ? 0.021416] platform 5460000.tcon-top: Fixing up cyclic dependency with 5200000.mixer

[? ? 0.021490] platform 5460000.tcon-top: Fixing up cyclic dependency with 5100000.mixer

[? ? 0.021765] platform 5461000.lcd-controller: Fixing up cyclic dependency with 5460000.tcon-top

[? ? 0.022121] platform 5470000.lcd-controller: Fixing up cyclic dependency with 5604000.tv-encoder

[? ? 0.022182] platform 5470000.lcd-controller: Fixing up cyclic dependency with 5460000.tcon-top

[? ? 0.023169] platform 7090000.rtc: Fixing up cyclic dependency with 7010000.clock-controller

[? ? 0.032855] SCSI subsystem initialized

[? ? 0.033313] usbcore: registered new interface driver usbfs

[? ? 0.033365] usbcore: registered new interface driver hub

[? ? 0.033404] usbcore: registered new device driver usb

[? ? 0.033593] mc: Linux media interface: v0.10

[? ? 0.033635] videodev: Linux video capture interface: v2.00

[? ? 0.033707] pps_core: LinuxPPS API ver. 1 registered

[? ? 0.033713] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <個(gè)人信息保護(hù)，已隱藏>

[? ? 0.033729] PTP clock support registered

[? ? 0.035078] clocksource: Switched to clocksource arch_sys_counter

[? ? 0.042556] NET: Registered PF_INET protocol family

[? ? 0.042745] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear)

[? ? 0.043279] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)

[? ? 0.043304] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)

[? ? 0.043314] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)

[? ? 0.043331] TCP bind hash table entries: 1024 (order: 1, 8192 bytes, linear)

[? ? 0.043350] TCP: Hash tables configured (established 1024 bind 1024)

[? ? 0.043428] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)

[? ? 0.043459] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)

[? ? 0.043619] NET: Registered PF_UNIX/PF_LOCAL protocol family

[? ? 0.044274] RPC: Registered named UNIX socket transport module.

[? ? 0.044288] RPC: Registered udp transport module.

[? ? 0.044291] RPC: Registered tcp transport module.

[? ? 0.044294] RPC: Registered tcp NFSv4.1 backchannel transport module.

[? ? 0.046218] Initialise system trusted keyrings

[? ? 0.046542] workingset: timestamp_bits=30 max_order=15 bucket_order=0

[? ? 0.051547] NFS: Registering the id_resolver key type

[? ? 0.051602] Key type id_resolver registered

[? ? 0.051608] Key type id_legacy registered

[? ? 0.051668] NET: Registered PF_ALG protocol family

[? ? 0.051676] Key type asymmetric registered

[? ? 0.051680] Asymmetric key parser 'x509' registered

[? ? 0.051810] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)

[? ? 0.051819] io scheduler mq-deadline registered

[? ? 0.051824] io scheduler kyber registered

[? ? 0.067285] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled

[? ? 0.076592] CAN device driver interface

[? ? 0.077263] PPP generic driver version 2.4.2

[? ? 0.077532] PPP BSD Compression module registered

[? ? 0.077541] PPP Deflate Compression module registered

[? ? 0.077768] PPP MPPE Compression module registered

[? ? 0.077776] NET: Registered PF_PPPOX protocol family

[? ? 0.077868] usbcore: registered new interface driver cdc_ether

[? ? 0.077908] usbcore: registered new interface driver cdc_eem

[? ? 0.077970] usbcore: registered new interface driver cdc_ncm

[? ? 0.077997] usbcore: registered new interface driver r8153_ecm

[? ? 0.078226] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

[? ? 0.078236] ehci-platform: EHCI generic platform driver

[? ? 0.078420] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver

[? ? 0.078442] ohci-platform: OHCI generic platform driver

[? ? 0.078605] usbcore: registered new interface driver cdc_acm

[? ? 0.078612] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

[? ? 0.078638] usbcore: registered new interface driver cdc_wdm

[? ? 0.078675] usbcore: registered new interface driver usb-storage

[? ? 0.078761] usbcore: registered new interface driver ch341

[? ? 0.078787] usbserial: USB Serial support registered for ch341-uart

[? ? 0.081006] sun6i-rtc 7090000.rtc: registered as rtc0

[? ? 0.081127] sun6i-rtc 7090000.rtc: setting system clock to 1970-01-02T00:00:01 UTC (86401)

[? ? 0.081256] sun6i-rtc 7090000.rtc: RTC enabled

[? ? 0.081567] i2c_dev: i2c /dev entries driver

[? ? 0.083180] sunxi-wdt 20500a0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)

[? ? 0.084251] sun8i-ce 3040000.crypto: Set mod clock to 300000000 (300 Mhz) from 400000000 (400 Mhz)

[? ? 0.084561] sun8i-ce 3040000.crypto: will run requests pump with realtime priority

[? ? 0.084898] sun8i-ce 3040000.crypto: will run requests pump with realtime priority

[? ? 0.085146] sun8i-ce 3040000.crypto: will run requests pump with realtime priority

[? ? 0.085334] sun8i-ce 3040000.crypto: will run requests pump with realtime priority

[? ? 0.085473] sun8i-ce 3040000.crypto: Register cbc(aes)

[? ? 0.085498] sun8i-ce 3040000.crypto: Register ecb(aes)

[? ? 0.085509] sun8i-ce 3040000.crypto: Register cbc(des3_ede)

[? ? 0.085529] sun8i-ce 3040000.crypto: Register ecb(des3_ede)

[? ? 0.085561] sun8i-ce 3040000.crypto: CryptoEngine Die ID 0

[? ? 0.086438] usbcore: registered new interface driver usbhid

[? ? 0.086447] usbhid: USB HID core driver

[? ? 0.087378] NET: Registered PF_PACKET protocol family

[? ? 0.087407] can: controller area network core

[? ? 0.087468] NET: Registered PF_CAN protocol family

[? ? 0.087476] can: raw protocol

[? ? 0.087482] can: broadcast manager protocol

[? ? 0.087497] can: netlink gateway - max_hops=1

[? ? 0.087601] Key type dns_resolver registered

[? ? 0.087627] Key type ceph registered

[? ? 0.088003] libceph: loaded (mon/osd proto 15/24)

[? ? 0.088102] Registering SWP/SWPB emulation handler

[? ? 0.088185] Loading compiled-in X.509 certificates

[? ? 0.106249] sun20i-d1-pinctrl 2000000.pinctrl: initialized sunXi PIO driver

[? ? 0.127541] 2500400.serial: ttyS1 at MMIO 0x2500400 (irq = 231, base_baud = 1500000) is a 16550A

[? ? 0.148857] 2500800.serial: ttyS2 at MMIO 0x2500800 (irq = 232, base_baud = 1500000) is a 16550A

[? ? 0.170136] 2500c00.serial: ttyS3 at MMIO 0x2500c00 (irq = 233, base_baud = 1500000) is a 16550A

[? ? 0.191451] 2501000.serial: ttyS4 at MMIO 0x2501000 (irq = 234, base_baud = 1500000) is a 16550A

[? ? 1.153604] printk: console [ttyS4] enabled

[? ? 1.179119] 2501400.serial: ttyS5 at MMIO 0x2501400 (irq = 235, base_baud = 1500000) is a 16550A

[? ? 1.191385] phy phy-4100400.phy.0: Changing dr_mode to 1

[? ? 1.192447] usb_phy_generic usb_phy_generic.1.auto: dummy supplies not allowed for exclusive requests

[? ? 1.196801] ehci-platform 4101000.usb: EHCI Host Controller

[? ? 1.206526] musb-hdrc musb-hdrc.2.auto: MUSB HDRC host driver

[? ? 1.217641] musb-hdrc musb-hdrc.2.auto: new USB bus registered, assigned bus number 2

[? ? 1.218394] ehci-platform 4200000.usb: EHCI Host Controller

[? ? 1.225739] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 6.00

[? ? 1.231285] ehci-platform 4101000.usb: new USB bus registered, assigned bus number 1

[? ? 1.239352] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[? ? 1.239361] usb usb2: Product: MUSB HDRC host driver

[? ? 1.239367] usb usb2: Manufacturer: Linux 6.0.1+ musb-hcd

[? ? 1.248768] ohci-platform 4200400.usb: Generic Platform OHCI controller

[? ? 1.254321] usb usb2: SerialNumber: musb-hdrc.2.auto

[? ? 1.276943] hub 2-0:1.0: USB hub found

[? ? 1.280742] hub 2-0:1.0: 1 port detected

[? ? 1.280833] ehci-platform 4101000.usb: irq 237, io mem 0x04101000

[? ? 1.291165] ohci-platform 4200400.usb: new USB bus registered, assigned bus number 4

[? ? 1.295293] ehci-platform 4200000.usb: new USB bus registered, assigned bus number 3

[? ? 1.299804] cfg80211: Loading compiled-in X.509 certificates for regulatory database

[? ? 1.314742] ohci-platform 4200400.usb: irq 241, io mem 0x04200400

[? ? 1.320912] ehci-platform 4101000.usb: USB 2.0 started, EHCI 1.00

[? ? 1.321058] sunxi-mmc 4020000.mmc: Got CD GPIO

[? ? 1.327243] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 6.00

[? ? 1.339771] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[? ? 1.347017] usb usb1: Product: EHCI Host Controller

[? ? 1.351896] usb usb1: Manufacturer: Linux 6.0.1+ ehci_hcd

[? ? 1.355414] sunxi-mmc 4020000.mmc: initialized, max. request size: 2048 KB, uses new timings mode

[? ? 1.357306] usb usb1: SerialNumber: 4101000.usb

[? ? 1.368476] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'

[? ? 1.371273] hub 1-0:1.0: USB hub found

[? ? 1.377612] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2

[? ? 1.381111] hub 1-0:1.0: 1 port detected

[? ? 1.389691] cfg80211: failed to load regulatory.db

[? ? 1.399425] ehci-platform 4200000.usb: irq 239, io mem 0x04200000

[? ? 1.405735] usb usb4: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 6.00

[? ? 1.414008] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[? ? 1.421259] usb usb4: Product: Generic Platform OHCI controller

[? ? 1.427195] usb usb4: Manufacturer: Linux 6.0.1+ ohci_hcd

[? ? 1.432596] usb usb4: SerialNumber: 4200400.usb

[? ? 1.437159] ehci-platform 4200000.usb: USB 2.0 started, EHCI 1.00

[? ? 1.437576] ohci-platform 4101400.usb: Generic Platform OHCI controller

[? ? 1.451072] hub 4-0:1.0: USB hub found

[? ? 1.454876] hub 4-0:1.0: 1 port detected

[? ? 1.459413] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 6.00

[? ? 1.467729] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[? ? 1.474946] usb usb3: Product: EHCI Host Controller

[? ? 1.479833] usb usb3: Manufacturer: Linux 6.0.1+ ehci_hcd

[? ? 1.485238] usb usb3: SerialNumber: 4200000.usb

[? ? 1.490318] hub 3-0:1.0: USB hub found

[? ? 1.494126] hub 3-0:1.0: 1 port detected

[? ? 1.498691] ohci-platform 4101400.usb: new USB bus registered, assigned bus number 5

[? ? 1.506736] ohci-platform 4101400.usb: irq 240, io mem 0x04101400

[? ? 1.528486] mmc0: new high speed SDXC card at address 0001

[? ? 1.534860] mmcblk0: mmc0:0001 JC2RT 59.6 GiB

[? ? 1.541676]? mmcblk0: p1 p2 p3

[? ? 1.579272] usb usb5: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 6.00

[? ? 1.587590] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[? ? 1.594809] usb usb5: Product: Generic Platform OHCI controller

[? ? 1.600739] usb usb5: Manufacturer: Linux 6.0.1+ ohci_hcd

[? ? 1.606144] usb usb5: SerialNumber: 4101400.usb

[? ? 1.611357] hub 5-0:1.0: USB hub found

[? ? 1.615210] hub 5-0:1.0: 1 port detected

[? ? 1.709741] EXT4-fs (mmcblk0p2): recovery complete

[? ? 1.717019] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Quota mode: disabled.

[? ? 1.725985] VFS: Mounted root (ext4 filesystem) on device 179:2.

[? ? 1.732991] devtmpfs: mounted

[? ? 1.737161] Freeing unused kernel image (initmem) memory: 1024K

[? ? 1.743253] Run /sbin/init as init process

[? ? 1.795116] usb 3-1: new high-speed USB device number 2 using ehci-platform

[? ? 1.967036] EXT4-fs (mmcblk0p2): re-mounted. Quota mode: disabled.

[? ? 1.995993] usb 3-1: New USB device found, idVendor=1a86, idProduct=8091, bcdDevice= 2.10

[? ? 2.004211] usb 3-1: New USB device strings: Mfr=0, Product=2, SerialNumber=0

[? ? 2.011458] usb 3-1: Product: USB HUB

[? ? 2.015886] hub 3-1:1.0: USB hub found

[? ? 2.019874] hub 3-1:1.0: 4 ports detected

Starting syslogd: OK

Starting klogd: OK

Running sysctl: OK

Populating /dev using udev: [? ? 2.226736] udevd[120]: starting version 3.2.11

[? ? 2.345085] usb 3-1.3: new high-speed USB device number 3 using ehci-platform

[? ? 7.365081] random: crng init done

[? ? 7.401441] udevd[121]: starting eudev-3.2.11

[? ? 7.465155] usb 3-1.3: device descriptor read/64, error -110

[? ?22.825083] usb 3-1.3: device descriptor read/64, error -110

[? ?23.045082] usb 3-1.3: new high-speed USB device number 4 using ehci-platform

[? ?28.185085] usb 3-1.3: device descriptor read/64, error -110

udevadm settle failed

done

Initializing random number generator: OK

Saving random seed: OK

Starting network: Waiting for interface usb0 to appear.^C...

.[? ?43.545086] usb 3-1.3: device descriptor read/64, error -110

[? ?43.665237] usb 3-1-port3: attempt power cycle

.[? ?44.325084] usb 3-1.3: new high-speed USB device number 5 using ehci-platform

.....

.... timeout!

run-parts: /etc/network/if-pre-up.d/wait_iface: exit status 1

FAIL

Starting ntpd: OK

Starting sshd: OK

Starting collectd: FAIL

Welcome to use T113

AllWinner T113 login: [? ?54.865085] usb 3-1.3: device not accepting address 5, error -110

[? ?54.965099] usb 3-1.3: new high-speed USB device number 6 using ehci-platform

Welcome to use T113

AllWinner T113 login:

Welcome to use T113

AllWinner T113 login:

Welcome to use T113

AllWinner T113 login:

Welcome to use T113

AllWinner T113 login:

Welcome to use T113

AllWinner T113 login:

Welcome to use T113

AllWinner T113 login: [? ?65.505083] usb 3-1.3: device not accepting address 6, error -110

[? ?65.511356] usb 3-1-port3: unable to enumerate USB device

[? ?65.815081] usb 3-1.4: new high-speed USB device number 7 using ehci-platform

[? ?65.976224] usb 3-1.4: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18

[? ?65.984582] usb 3-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0

[? ?65.991911] usb 3-1.4: Product: Android

[? ?65.995766] usb 3-1.4: Manufacturer: Android

[? ?66.007062] cdc_ether 3-1.4:1.4 usb0: register 'cdc_ether' at usb-4200000.usb-1.4, CDC Ethernet Device, e6:bb:aa:44:41:5b

在這一部分出現(xiàn)了枚舉失敗的情況

[? ? 7.465155] usb 3-1.3: device descriptor read/64, error -110

[? ?22.825083] usb 3-1.3: device descriptor read/64, error -110

[? ?23.045082] usb 3-1.3: new high-speed USB device number 4 using ehci-platform

[? ?28.185085] usb 3-1.3: device descriptor read/64, error -110

您好，如上提示是Hub枚舉設(shè)備不正常，應(yīng)是硬件工作不穩(wěn)定導(dǎo)致。為快速解決您的問題，可直接電聯(lián)下相關(guān)同事。電話：025-52638373、025-52638375。

嗯 已于貴司FAE進(jìn)行電話溝通

最近使用CH334R，使用主控T113-i/LINUX系統(tǒng)，無法識(shí)別HUB，引線出來接電腦上也識(shí)別不了，測(cè)量晶振只有XO有波形，最大幅值只有600mV/24MHz，XI只有0.6V左右的電平，沒有波形。改為5V供電一樣的問題。麻煩指導(dǎo)一下。

圖中晶振是12M，您說的測(cè)了是24M不太對(duì)呢，334只支持12M。麻煩先確認(rèn)下實(shí)際的晶振參數(shù)