USB 1-1.1: No configuration chosen from 1 choice

A usb hub 2.0 chip is attached to arm USB, but after the USB flash drive of USB is inserted, the following message is displayed:

USB 1-1.1: USB disconnect, address 8
USB 1-1.1: new full speed USB device using s3c2410-ohci and address 9
USB 1-1.1: new USB device found, idvendor = 05e3, idproduct = 0723
USB 1-1.1: new USB device strings: MFR = 3, Product = 4, serialnumber = 2
USB 1-1.1: Product: USB storage
USB 1-1.1: Manufacturer: Generic
USB 1-1.1: serialnumber: 000000009451
USB 1-1.1: Rejected 1 configuration due to insufficient available bus power
USB 1-1.1: No configuration chosen from 1 choice

Run the following command on the terminal:

[Root @ sbote/] # echo-N 1>/sys/bus/USB/devices/1-1.1/bconfigurationvalue
 
USB 1-1.1: New config #1 exceeds power limit by 400mA
Scsi1: SCSI emulation for USB Mass Storage Devices

After the command is executed, the output shows that the external USB device current is increased to 400mA.

The ovcur signal on the USB hub schematic diagram is directly pulled to 5 V at 10 K, while the official schematic diagram is from 5 V series 10 K and 20 k resistance to Gnd, take the intermediate level, the ovcur voltage calculated using 5 V is about 3.3 V.

It may be because of the current problem.

Re-insert the USB flash drive to identify the problem.

Keywords: arm USB hub current