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回复 #1 star316 的帖子
我用的也是OMAP,我有个3G模块通过USB口和OMAP相连,无法识别该USB设备。具体情况如下:
1 内核中没加入EHCI驱动时,
插入模块后,自动报错,如下:
[MiniBoard]# usb 1-1: reset high speed USB device using musb_hdrc and address 2
usb 1-1.3: new high speed USB device using musb_hdrc and address 6
usb 1-1.3: device not accepting address 6, error -71
usb 1-1.3: new high speed USB device using musb_hdrc and address 7
usb 1-1.3: device not accepting address 7, error -71
usb 1-1.3: new high speed USB device using musb_hdrc and address 8
hub 1-1:1.0: unable to enumerate USB device on port 3
[MiniBoard]# dmesg
usb usb1: usb resume
hub 1-0:1.0: hub_resume
hub 1-0:1.0: port 1: status 0503 change 0004
hub 1-0:1.0: state 7 ports 1 chg 0002 evt 0000
usb 1-1: usb wakeup-resume
usb 1-1: finish resume
usb 1-1: retry with reset-resume
usb 1-1: reset high speed USB device using musb_hdrc and address 2
hub 1-1:1.0: hub_reset_resume
hub 1-1:1.0: enabling power on all ports
hub 1-1:1.0: port 3: status 0101 change 0001
hub 1-0:1.0: resume on port 1, status 0
hub 1-0:1.0: port 1, status 0503, change 0004, 480 Mb/s
hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002
hub 1-0:1.0: port 1 enable change, status 00000503
hub 1-1:1.0: state 7 ports 4 chg 0008 evt 0000
hub 1-1:1.0: port 3, status 0101, change 0000, 12 Mb/s
usb 1-1.3: new high speed USB device using musb_hdrc and address 6
usb 1-1.3: device not accepting address 6, error -71
usb 1-1.3: new high speed USB device using musb_hdrc and address 7
usb 1-1.3: device not accepting address 7, error -71
usb 1-1.3: new high speed USB device using musb_hdrc and address 8
hub 1-1:1.0: unable to enumerate USB device on port 3
hub 1-1:1.0: state 7 ports 4 chg 0000 evt 0008
hub 1-1:1.0: port 3, status 0100, change 0001, 12 Mb/s
hub 1-1:1.0: debounce: port 3: total 100ms stable 100ms status 0x100
hub 1-1:1.0: hub_suspend
usb 1-1: usb auto-suspend
hub 1-0:1.0: hub_suspend
usb usb1: bus auto-suspend
[MiniBoard]# tail /var/log/messages
Jan 1 00:00:02 $HOSTNAME syslog.info syslogd started: BusyBox v1.12.2
Jan 1 00:08:21 $HOSTNAME syslog.info syslogd exiting
Jan 1 00:08:47 $HOSTNAME syslog.info syslogd started: BusyBox v1.12.2
Jan 1 00:00:01 $HOSTNAME syslog.info syslogd started: BusyBox v1.12.2
Jan 1 00:00:33 $HOSTNAME syslog.info syslogd exiting
Jan 1 00:00:59 $HOSTNAME syslog.info syslogd started: BusyBox v1.12.2
Jan 1 00:19:25 $HOSTNAME syslog.info syslogd exiting
Jan 1 00:19:48 $HOSTNAME syslog.info syslogd started: BusyBox v1.12.2
Jan 1 00:24:40 $HOSTNAME syslog.info syslogd started: BusyBox v1.12.2
Jan 1 00:00:02 $HOSTNAME syslog.info syslogd started: BusyBox v1.12.2
2 加入EHCI驱动后,都不会自动报错,查看dmesg都没有任何可显示的信息。
而且上次通过USB View查看到此设备是full speed,挂在UHCI下。
请问怎么回事?? |
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