# Output on linux:
#./dfu-programmer  at90usb1287 dump --debug 999
     target: at90usb1287
    chip_id: 0x2ffb
  vendor_id: 0x03eb
    command: dump
      quiet: false
      debug: 999
device_type: AVR
------ command specific below ------

usb_set_debug: Setting debugging level to 999 (on)
usb_os_init: Found USB VFS at /dev/bus/usb
usb_os_find_busses: Found 005
usb_os_find_busses: Found 001
usb_os_find_busses: Found 002
usb_os_find_busses: Found 004
usb_os_find_busses: Found 003
usb_os_find_devices: Found 101 on 005
skipped 1 class/vendor specific interface descriptors
skipped 1 class/vendor specific interface descriptors
usb_os_find_devices: Found 100 on 005
skipped 1 class/vendor specific interface descriptors
usb_os_find_devices: Found 098 on 005
usb_os_find_devices: Found 001 on 005
error obtaining child information: Inappropriate ioctl for device
error obtaining child information: Inappropriate ioctl for device
usb_os_find_devices: Found 001 on 001
usb_os_find_devices: Found 001 on 002
usb_os_find_devices: Found 005 on 004
usb_os_find_devices: Found 001 on 004
error obtaining child information: Inappropriate ioctl for device
usb_os_find_devices: Found 001 on 003
dfu.c:566: Found DFU Inteface: 0
dfu.c:218: ==============================
dfu.c:220: status->bStatus: OK (0x00)
dfu.c:221: status->bwPollTimeout: 0x0001
dfu.c:223: status->bState: dfuIDLE (0x02)
dfu.c:224: status->iString: 0x00
dfu.c:225: ------------------------------
dfu.c:601: State: dfuIDLE (2)
commands.c:271: dump 65536 bytes
atmel.c:325: read 65536 bytes
atmel.c:352: 3072 bytes to 0x805f548, from MCU 000000
USB error: error sending control message: Broken pipe
dfu.c:699: -EPIPE: a) Babble detect or b) Endpoint stalled 0xffffffe0 (-32)
atmel.c:368: result: -32
dfu.c:218: ==============================
dfu.c:220: status->bStatus: errWRITE (0x03)
dfu.c:221: status->bwPollTimeout: 0x0001
dfu.c:223: status->bState: dfuIDLE (0x02)
dfu.c:224: status->iString: 0x00
dfu.c:225: ------------------------------
Unknown error.  Try enabling debug.
Request for 65536 bytes of memory failed.