adafruit-mirror/Adafruit_Python_PlatformDetect
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Merge branch 'main' of https://github.com/bgigous/Adafruit_Python_PlatformDetect

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This commit is contained in:
Melissa LeBlanc-Williams 2025-07-02 10:57:10 -07:00
commit 1295880bef
1 changed files with 12 additions and 8 deletions
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20
adafruit_platformdetect/board.py
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@ -20,6 +20,7 @@ Implementation Notes
"""
import glob
import os
import re
@ -333,20 +334,23 @@ class Board:
if "beaglev-starlight" in board_value:
return boards.BEAGLEV_STARLIGHT
# find device alias at i2c address 0x50 (0-00500, 0-00501, etc)
nvmem_devices = glob.glob('/sys/bus/nvmem/devices/0-0050*')
# do not expect there to be anything but one eeprom
if len(nvmem_devices) != 1:
return None
eeprom_dir = nvmem_devices[0]
try:
with open("/sys/bus/nvmem/devices/0-00500/nvmem", "rb") as eeprom:
with open(f"{eeprom_dir}/nvmem", "rb") as eeprom:
eeprom_bytes = eeprom.read(16)
except FileNotFoundError:
try:
with open("/sys/bus/nvmem/devices/0-00501/nvmem", "rb") as eeprom:
# Special Case for AI64
with open("/sys/bus/nvmem/devices/2-00500/nvmem", "rb") as eeprom:
eeprom_bytes = eeprom.read(16)
except FileNotFoundError:
try:
# Special Case for AI64
with open("/sys/bus/nvmem/devices/2-00500/nvmem", "rb") as eeprom:
eeprom_bytes = eeprom.read(16)
except FileNotFoundError:
return None
return None
if eeprom_bytes[:4] != b"\xaaU3\xee":
return None