How to mount the USB disk storage decies in android device

in device/qcom/msm7627_7x_surf/vold.fstab

change:

dev_mount sdcard /mnt/sdcard auto /devices/platform/msm_sdcc.1/mmc_host

to

dev_mount sdcard /mnt/sdcard auto /devices/platform/msm_hsusb_host.0/usb1