#!/bin/bash
EEPROMHex='eeprom-content.hex'  # File used for manufacturer brand
Product='Block Erupter Sapphire'
SerialPrefix='Foo-'  # Prepended before 8-digit serial number
SerialNoFile='last-serialno'  # File holds the last allocated serial number

if ! [ -e "${SerialNoFile}" ]; then
	echo "WARNING: Initializing ${SerialNoFile} file (this should only happen ONCE EVER)" >&2
	echo '10000000' > "${SerialNoFile}"
fi
i="$(<"${SerialNoFile}")"
for dev in $(lsusb | perl -nle 'm/(\d{3}).*?(\d{3}).*CP210x/ && print "$1/$2"'); do
	let ++i
	echo "$i" >"${SerialNoFile}"
	./cp210x-program -m $dev -w -F "$EEPROMHex" \
	  --set-product-string="$Product" \
	  --set-serial-number "${SerialPrefix}$i"
done