Hi There is a problem (or bug) in kernel/linux-2.6.32.17-psp03.01.01.39/drivers/usb/musb/davinci.c that prevents it from compiling correctly and it gives you an error about phy_on . I have a workaround for this: You can manually open kernel/linux-2.6.32.17-psp03.01.01.39/drivers/usb/musb/davinci...