USB2514B USB Hub的下游端口无法正常工作

你好，专家，我正面临着UB2514B集线器的问题。我用A3358（ti）处理器连接了这个集线器，而下流端口没有检测到，并且由于自动挂起/恢复功能，集线器驱动程序处于挂起模式。不知道为什么它在暂停模式，虽然我已经连接了一个USB调制解调器，而且还连接外部的USB棒。这是我从Linux获得的日志。& lt；7 & gt；（1.376123）USB UB1：默认语言0x0409 & lt；7和gt；[6] USB UB1：UDEV 1，BunUm 1，次要＝0和lt；6（＞1.376166）USB U。B1：新的USB设备发现，IDBug＝1D6B，ID乘积＝0002 & lt；（1.383262）USBUSB1：新的USB设备字符串：MFR＝3，产品＝2，串行数＝1和lt；6和gt；[1.390813 ] USBUSB1：产品：MUSB-HDRC主机驱动程序& lt；6和gt；[1.396003 ] USBUSB1：制造商：Linux 3.813+MUSB-HCD＆L. 6 & Gt；[USID] USBUSB1SerialNo.MUSB HDRC。1。Auto＆lt；7 U.gt；（1.407308）USB BBeByOne设备& lt；7和gt；[6] USB USB B1：从1选择& lt；7和gt；[1.407360 ] USB UB1中选择的配置1：添加1-0:1.0（CONFIG 1 1，接口0）& lt；7 [GT]；[SUB]集线器1-0:1.0:1：UBSPROBEIO接口-获得ID和lt；（1.407491）集线器1-0:1.0:USB集线器找到& lt；6 [GT]（1.411473）集线器1-0:1.0:1检测端口& lt；7 [gt；[1.415598 ]集线器1-0:1.0：独立的集线器& lt；7和gt；[1.415609 ]集线器1-0:1.0:端口功率转换-lt；7 & gt；[1.415617 ]集线器1-0:1.0：无过电流保护In and lt；7（1.415626）集线器1-0:1.0：单个TT & lt；7（1.415637）集线器1-0:1.0：TT最多需要8 fs的比特时间（666纳秒）& lt；7和gt；[1.415646 ]集线器1-0:1.0：电源上好时间：10ms和lt；7和gt；[1.415668 ]集线器1-0:1.0：本地电源是好的& 7和gt；[1.415735 ]集线器1-0:1.0：使能在所有端口lt；7和gt；（1.520374）集线器1-0:1.0：状态7端口1 CHG 0000 EVT 0000和lt；7和gt；[1.520417 ]集线器1-0:1.0:HubpStull＆lt；7和gt；[1.520441 ] USB USB：总线自动挂起，唤醒可能是什么问题？你能帮帮我吗？附上示意图供您参考，谢谢您的帮助！



      以下为原文

    Hello Experts,
I'm facing problem with USB2514B Hub.
I have interfaced this hub with AM3358 (TI) processor and down stream ports are not detecting.
And due to auto suspend/resume feature, hub driver is in suspend mode. Not sure why its in suspend mode though I have connected a USB modem permanently and also connected u*** stick externally.

This is the log I'm getting from linux.

<7>[    1.376123] u*** u***1: default language 0x0409
<7>[    1.376154] u*** u***1: udev 1, busnum 1, minor = 0
<6>[    1.376166] u*** u***1: New USB device found, idVendor=1d6b, idProduct=0002
<6>[    1.383262] u*** u***1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
<6>[    1.390813] u*** u***1: Product: MUSB HDRC host driver
<6>[    1.396003] u*** u***1: Manufacturer: Linux 3.8.13+ mu***-hcd
<6>[    1.401733] u*** u***1: SerialNumber: mu***-hdrc.1.auto
<7>[    1.407308] u*** u***1: u***_probe_device
<7>[    1.407322] u*** u***1: configuration #1 chosen from 1 choice
<7>[    1.407360] u*** u***1: adding 1-0:1.0 (config #1, interface 0)
<7>[    1.407463] hub 1-0:1.0: u***_probe_interface
<7>[    1.407474] hub 1-0:1.0: u***_probe_interface - got id
<6>[    1.407491] hub 1-0:1.0: USB hub found
<6>[    1.411473] hub 1-0:1.0: 1 port detected
<7>[    1.415598] hub 1-0:1.0: standalone hub
<7>[    1.415609] hub 1-0:1.0: individual port power switching
<7>[    1.415617] hub 1-0:1.0: no over-current protection
<7>[    1.415626] hub 1-0:1.0: Single TT
<7>[    1.415637] hub 1-0:1.0: TT requires at most 8 FS bit times (666 ns)
<7>[    1.415646] hub 1-0:1.0: power on to power good time: 10ms
<7>[    1.415668] hub 1-0:1.0: local power source is good
<7>[    1.415735] hub 1-0:1.0: enabling power on all ports
<7>[    1.520374] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0000
<7>[    1.520417] hub 1-0:1.0: hub_suspend
<7>[    1.520441] u*** u***1: bus auto-suspend, wakeup 1

What could be the problem ?
Can you please help me on this ?
Attached the schematics for your reference.
Thanks for your help!



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