我在开发板上插入usb外设的时候，系统无法挂载外设。命令行有如下的日志输出：
# dmesg
<7>hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0004
<7>ohci-omap3 ohci-omap3.0: GetStatus roothub.portstatus [1] = 0x00010100 CSC PPS
<7>hub 1-0:1.0: port 2, status 0100, change 0001, 12 Mb/s
<7>hub 1-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x100
<7>ohci-omap3 ohci-omap3.0: auto-stop root hub
<7>ohci-omap3 ohci-omap3.0: auto-wakeup root hub
<7>hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0004
<7>ohci-omap3 ohci-omap3.0: GetStatus roothub.portstatus [1] = 0x00010101 CSC PPS CCS
<7>hub 1-0:1.0: port 2, status 0101, change 0001, 12 Mb/s
<7>hub 1-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x101
<7>ohci-omap3 ohci-omap3.0: GetStatus roothub.portstatus [1] = 0x00100103 PRSC PPS PES CCS
<6>usb 1-2: new full speed USB device using ohci-omap3 and address 11
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: GetStatus roothub.portstatus [1] = 0x00100103 PRSC PPS PES CCS
<3>usb 1-2: device descriptor read/64, error -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: GetStatus roothub.portstatus [1] = 0x00100103 PRSC PPS PES CCS
<3>usb 1-2: device descriptor read/64, error -62
<7>ohci-omap3 ohci-omap3.0: GetStatus roothub.portstatus [1] = 0x00100103 PRSC PPS PES CCS
<6>usb 1-2: new full speed USB device using ohci-omap3 and address 12
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: GetStatus roothub.portstatus [1] = 0x00100103 PRSC PPS PES CCS
<3>usb 1-2: device descriptor read/64, error -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0in 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: GetStatus roothub.portstatus [1] = 0x00100103 PRSC PPS PES CCS
<3>usb 1-2: device descriptor read/64, error -62
<7>ohci-omap3 ohci-omap3.0: GetStatus roothub.portstatus [1] = 0x00100103 PRSC PPS PES CCS
<6>usb 1-2: new full speed USB device using ohci-omap3 and address 13
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0out 7ec20000 cc 7 --> status -71
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0out 7ec20000 cc 7 --> status -71
<3>usb 1-2: device not accepting address 13, error -71
<7>ohci-omap3 ohci-omap3.0: GetStatus roothub.portstatus [1] = 0x00100103 PRSC PPS PES CCS
<6>usb 1-2: new full speed USB device using ohci-omap3 and address 14
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0out 5ec20000 cc 5 --> status -62
<7>ohci-omap3 ohci-omap3.0: urb cb6186c0 path 2 ep0out 5ec20000 cc 5 --> status -62
<3>usb 1-2: device not accepting address 14, error -62
<3>hub 1-0:1.0: unable to enumerate USB device on port 2
<7>hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0004
有兄弟知道是咋回事吗.
|
|
楼主
