bash-3.00# uisp -dlpt=/dev/parport0 --rd_fuses --verify -v=3 -dprog=dapa -dpart=AT90S8515 Reset inactive time (t_reset) 1000 us AVR Direct Parallel Access succeeded after 31 retries. Vendor Code: 0x1e Part Family: 0x93 Part Number: 0x01 Atmel AVR AT90S8515 is found. Page Write Disabled FLASH Write Delay (t_wd_flash): 11111 us EEPROM Write Delay (t_wd_eeprom): 11111 us Read fuse/cal/lock: byte 0 = 0xFF Fuse Low Byte = 0xff Read fuse/cal/lock: byte 1 = 0xFF Fuse High Byte = 0xff Read fuse/cal/lock: byte 4 = 0xFF Fuse Extended Byte = 0xff Read fuse/cal/lock: byte 2 = 0xFF Calibration Byte = 0xff -- Read Only ReadLockBits failed: are you sure this device has lock bits?