X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=include%2Fnet.h;h=af8617bea6c51b5da319860c938ff64bb42aea6c;hb=47d79dfb0b72c81464c88aaa12769bf2926fb2b1;hp=afe79915ff4b51de144f9f31295e1ae7756358c0;hpb=8b0998bba4a9b84ba0566696dfbee57a6104075f;p=karo-tx-uboot.git

diff --git a/include/net.h b/include/net.h
index afe79915ff..af8617bea6 100644
--- a/include/net.h
+++ b/include/net.h
@@ -119,7 +119,9 @@ enum eth_recv_flags {
  * mcast: Join or leave a multicast group (for TFTP) - optional
  * write_hwaddr: Write a MAC address to the hardware (used to pass it to Linux
  *		 on some platforms like ARM). This function expects the
- *		 eth_pdata::enetaddr field to be populated - optional
+ *		 eth_pdata::enetaddr field to be populated. The method can
+ *		 return -ENOSYS to indicate that this is not implemented for
+		 this hardware - optional.
  * read_rom_hwaddr: Some devices have a backup of the MAC address stored in a
  *		    ROM on the board. This is how the driver should expose it
  *		    to the network stack. This function should fill in the