id = 1485
title = "hw/at24c : not support 1 byte-address with eeprom size less than 256 byte"
state = "closed"
created_at = "2023-02-10T07:04:15.680Z"
closed_at = "2023-03-14T08:15:20.712Z"
labels = []
url = "https://gitlab.com/qemu-project/qemu/-/issues/1485"
host-os = "Ubuntu 20.04.5 LTS"
host-arch = "ARM"
qemu-version = "7.2.0"
guest-os = "n/a"
guest-arch = "n/a"
description = """I created the new platform base on aspeed/fuji,
that uses the virtual eeprom (at24c), some eeprom used 24c02, which size 256 bytes.
but when using /hw/at24c.c, the result will not same the real device."""
reproduce = """1. create a machine with EEPROM size less then or equal 256 bytes
2. start the qemu
3. use i2cget/i2cset/i2cdump to write and display eeprom data"""
additional = """I fixed and validated, refer
https://gitlab.com/ssinprem/qemu/-/tree/at24c-1-byte-address-mode"""