Hi, All
If I connect USB storage to external hub,everything is ok.I can mount disk,read files/dirs on disk.But if I connect it to internal hub.There are following msg on my console:
Manufacturer: USB
Product: Solid state disk
SerialNumber: 36541A7D3EC99589
scsi0 : SCSI emulation for USB Mass Storage devices
Vendor: SSK Model: ?... Rev: 1.11
Type: Direct-Access ANSI SCSI revision: 02
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sda: 258048 512-byte hdwr sectors (132 MB)
sda: Write Protect is off
Partition check:
sda:<7>usb-storage: queuecommand() called
usb-ohci.c: USB-error/status: 6 : a0874040
usb-ohci.c: USB-error/status: 6 : a08740c0
#
#
# usb_control/bulk_msg: timeout
usb-ohci.c: unlink URB timeout
Because I modify dl_reverse_done_list to output TDs status,we can see one TDs completion code is 6.My USB host controller is USB 1.1 OHCI Rev 1.0 complied.
6 = PIDCheckFailure.
My kernel is 2.4.20. Any advices are welcome.
Best Regards yfw
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