ftdi_eeprom1

Usage

Overview

ftdi_eeprom is a small tool for reading/erasing/flashing FTDI USB chip eeproms. It uses libftdi to access the chip, so you will need to have the required permissions on the device.

The ftdi_sio module should not be loaded. You can prevent it to be automatically loaded by adding it to /etc/modprobe.d/blacklist.

You have to unplug and replug your device to get the new values to be read. Otherwise, you will still get the old values.

Commands

--device description

Specify device to open by description string. One of:

  d:<device node>
  i:<vendor>:<product>
  i:<vendor>:<product>:<index>
  s:<vendor>:<product>:<serial>

--read-eeprom

Read eeprom and write to ‐filename‐ from config-file.

--build-eeprom

Build eeprom image.

--erase-eeprom

Erase eeprom.

--flash-eeprom

Flash eeprom.

--verbose

Print more information.

Configuration file

The configuration file contains a list of key-value pairs which will be used to flash an FTDI USB chip eeprom. Comments start with #. The beginning of such a file might look like the following:

vendor_id=0x0403        # Vendor ID
product_id=0x6001       # Product ID
max_power=0             # Max. power consumption: value * 2 mA. Use 0 if self_powered = true.
###########
# Strings #
###########
manufacturer="ACME Inc"                 # Manufacturer
product="USB Serial Converter"          # Product
serial="08-15"                          # Serial

The example configuration file that could be found in /usr/share/doc/ftdi-eeprom/ is quite well commented so you should be able to use it as a basis. The following keys are supported:

vendor_id

Set the vendor ID of the device. This value could be entered in decimal or hexadecimal form, and should be in the range 0-65535 or 0x0000-0xffff, respectively.

product_id

Set the product ID of the device. This value could be entered in decimal or hexadecimal form, and should be in the range 0-65535 or 0x0000-0xffff, respectively.

max_power

Set the maximum current the device will use, in 2 mA unit. Use 0 if self_powered = true.

manufacturer

Set the manufacturer string which normally holds the name of the manufacturer.

product

Set the product string which normally holds the name of the product.

serial

Set the serial string which normally holds the serial number of the product.

self_powered

Specify if the device is self-powered or not. The value should be true or false.

remote_wakeup

Specify if the device supports remote wake-ups. The value should be true or false.

use_serial

If this value is set to true, the serial string will be used. Otherwise the default serial string will be used.

BM_type_chip

This value have to be set to true if you are using a BM chip.

in_is_isochronous

If set to true this option specify that the input endpoint is in isochronous mode.

out_is_isochronous

If set to true this option specify that the output endpoint is in isochronous mode.

suspend_pull_downs

If this value is set to true the pull downs are enabled during suspend for lower power consumption.

change_usb_version

This value has to be set to true if you want to force the USB version using the usb_version key. Otherwise the default USB version will be used.

usb_version

Set the USB version of the device. The change_usb_version value has to be set to true.

filename

Specify a filename if you want to dump the content of the eeprom into it.