Tool/software: Linux
I use a hub chip USB2514 to connect to the USB musb-hdrc.1。The system is running after a while,sometimes the usb port from the hub,can not work well。when I insert a USB flash disk ,kernel will report errors like these
usb 2-1.1: new high-speed USB device number 13 using musb-hdrc
usb 2-1.1: New USB device found, idVendor=0930, idProduct=6544
usb 2-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 2-1.1: Product: DataTraveler 2.0
usb 2-1.1: Manufacturer: Kingston
usb 2-1.1: SerialNumber: 60A44C3FAC7DCFB149722461
scsi5 : usb-storage 2-1.1:1.0
and then I enter cmd "fdisk -l",kenel will report like these
uncorrectable error :
uncorrectable error :
end_request: I/O error, dev mtdblock0, sector 0
Buffer I/O error on device mtdblock0, logical block 0
uncorrectable error :
uncorrectable error :
end_request: I/O error, dev mtdblock0, sector 8
Buffer I/O error on device mtdblock0, logical block 1
uncorrectable error :
uncorrectable error :
end_request: I/O error, dev mtdblock0, sector 16
Buffer I/O error on device mtdblock0, logical block 2
uncorrectable error :
uncorrectable error :
end_request: I/O error, dev mtdblock0, sector 24
Buffer I/O error on device mtdblock0, logical block 3
uncorrectable error :
uncorrectable error :
end_request: I/O error, dev mtdblock0, sector 0
Buffer I/O error on device mtdblock0, logical block 0
my linux version is 3.2.0
and one port from hub is connectedt to a 4G module ,and it will use these port to virtual 5 serial ports。
and the usb port which is not conneted to 2514 usb hub chip can use USB flash disk well.
