diff options
Diffstat (limited to 'doc/README.enetaddr')
| -rw-r--r-- | doc/README.enetaddr | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/README.enetaddr b/doc/README.enetaddr index 0fafd2c..50e4899 100644 --- a/doc/README.enetaddr +++ b/doc/README.enetaddr @@ -15,7 +15,7 @@ Here are the places where MAC addresses might be stored: - board-specific location (eeprom, dedicated flash, ...) Note: only used when mandatory due to hardware design etc... - - environment ("ethaddr", "eth1addr", ...) (see CONFIG_ETHADDR) + - environment ("ethaddr", "eth1addr", ...) Note: this is the preferred way to permanently store MAC addresses - ethernet data (struct eth_device -> enetaddr) @@ -37,6 +37,8 @@ Correct flow of setting up the MAC address (summarized): environment variable will be used unchanged. If the environment variable is not set, it will be initialized from eth_device->enetaddr, and a warning will be printed. + If both are invalid and CONFIG_NET_RANDOM_ETHADDR is defined, a random, + locally-assigned MAC is written to eth_device->enetaddr. 4. Program the address into hardware if the following conditions are met: a) The relevant driver has a 'write_addr' function b) The user hasn't set an 'ethmacskip' environment variable |