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Date:      Mon, 05 Nov 2007 15:28:55 +0200
From:      Krassimir Slavchev <krassi@bulinfo.net>
To:        freebsd-arm@freebsd.org
Subject:   Detecting USB devices at startup?
Message-ID:  <472F1A97.3090308@bulinfo.net>

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Hi,

I have strange problem with my at91rm9200 board.

At boot I get:
...
ohci0: <AT91 integrated ohci controller> mem 0xdfe00000-0xdfefffff irq
23 on atmelarm0
ohci0: [GIANT-LOCKED]
ohci0: [ITHREAD]
uhub0: 2 ports with 2 removable, self powered
usbd_get_config_desc: confidx=0, bad desc len=9 type=36
uhub_explore: usb_new_device failed, error=INVAL
uhub0: device problem (INVAL), disabling port 1
usb_new_device: set address 2 failed - trying a port reset
usb_new_device: set address 2 failed - trying a port reset
usbd_new_device: addr=2, getting first desc failed
uhub_explore: usb_new_device failed, error=IOERROR
uhub0: device problem (IOERROR), disabling port 2

But if I unplug and plug the usb device:

umass0: <vendor 0x3538 USB Mass Storage Device, class 0/0, rev
2.00/1.00, addr 2> on uhub0
umass0: SCSI over Bulk-Only; quirks = 0x0000
umass0:0:0:-1: Attached to scbus0
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <Generic USB Flash Disk 0.00> Removable Direct Access SCSI-2 device
da0: 1.000MB/s transfers
da0: 250MB (512000 512 byte sectors: 64H 32S/T 250C)

Any ideas why this happens?

Best Regards

PS1: I have this problem with all USB devices I tested.
PS2: Errors about port 2 should be ignored.

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