Alan Stern <stern@...> writes:
>
> On Sun, 27 May 2012, Guan wrote:
>
> Where was the original bug report posted?
No idea ...
>
> What does the dmesg log say if CONFIG_USB_DEBUG is enabled?
Much similar as the OP's. On startup when I modprobe usb-ohci it works; on
re-connect there comes this message:
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Drive
ep93xx-ohci ep93xx-ohci: EP93xx OHCI
ep93xx-ohci ep93xx-ohci: new USB bus registered, assi
ep93xx-ohci ep93xx-ohci: irq 56, io mem 0x80020000
usb usb1: New USB device found, idVendor=1d6b, idProd
usb usb1: New USB device strings: Mfr=3, Product=2, S
usb usb1: Product: EP93xx OHCI
usb usb1: Manufacturer: Linux 3.4.0 ohci_hcd
usb usb1: SerialNumber: ep93xx
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
usb 1-1: new full-speed USB device number 2 using ep9
usb 1-1: New USB device found, idVendor=16c0, idProdu
usb 1-1: New USB device strings: Mfr=0, Product=0, Se
usb 1-3: new full-speed USB device number 3 using ep9
usb 1-3: New USB device found, idVendor=0a12, idProdu
usb 1-3: New USB device strings: Mfr=0, Product=0, Se
usb 1-1: USB disconnect, device number 2
usb 1-1: new full-speed USB device number 4 using ep9
usb 1-1: New USB device found, idVendor=16c0, idProdu
usb 1-1: New USB device strings: Mfr=1, Product=2, Se
usb 1-1: Product: QHY5-CMOS
usb 1-1: Manufacturer: QHY_CAMS
NET: Registered protocol family 10
Please press Enter to activate this console. usb 1-1:
usb 1-1: new full-speed USB device number 5 using ep9
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 6 using ep9
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 7 using ep9
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 8 using ep9
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
hub 1-0:1.0: unable to enumerate USB device on port 1
usb 1-1: new full-speed USB device number 9 using ep9
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 10 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 11 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 12 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
hub 1-0:1.0: unable to enumerate USB device on port 1
usb 1-1: new full-speed USB device number 13 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 14 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 15 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 16 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
hub 1-0:1.0: unable to enumerate USB device on port 1
usb 1-1: new full-speed USB device number 17 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 18 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 19 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 20 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
hub 1-0:1.0: unable to enumerate USB device on port 1
usb 1-1: new full-speed USB device number 21 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 22 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 23 using ep
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
usb 1-1: new full-speed USB device number 24 using ep93xx-ohci
usb 1-1: no configurations
usb 1-1: can't read configurations, error -22
hub 1-0:1.0: unable to enumerate USB device on port 1
hub 1-0:1.0: port 3 disabled by hub (EMI?), re-enabling...
usb 1-3: USB disconnect, device number 3
usb 1-3: new full-speed USB device number 25 using ep93xx-ohci
usb 1-3: no configurations
usb 1-3: can't read configurations, error -22
usb 1-3: new full-speed USB device number 26 using ep93xx-ohci
usb 1-3: no configurations
usb 1-3: can't read configurations, error -22
usb 1-3: new full-speed USB device number 27 using ep93xx-ohci
usb 1-3: no configurations
usb 1-3: can't read configurations, error -22
usb 1-3: new full-speed USB device number 28 using ep93xx-ohci
usb 1-3: no configurations
usb 1-3: can't read configurations, error -22
hub 1-0:1.0: unable to enumerate USB device on port 3
usb 1-3: new full-speed USB device number 29 using ep93xx-ohci
usb 1-3: no configurations
usb 1-3: can't read configurations, error -22
usb 1-3: new full-speed USB device number 30 using ep93xx-ohci
usb 1-3: no configurations
usb 1-3: can't read configurations, error -22
usb 1-3: new full-speed USB device number 31 using ep93xx-ohci
usb 1-3: no configurations
usb 1-3: can't read configurations, error -22
usb 1-3: new full-speed USB device number 32 using ep93xx-ohci
usb 1-3: no configurations
usb 1-3: can't read configurations, error -22
hub 1-0:1.0: unable to enumerate USB device on port 3
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