quoted

+/* Expose sysfs for every blink to be configurable from userspace */
+DEFINE_OFFLOAD_TRIGGER(blink_tx, BLINK_TX);
+DEFINE_OFFLOAD_TRIGGER(blink_rx, BLINK_RX);
+DEFINE_OFFLOAD_TRIGGER(keep_link_10m, KEEP_LINK_10M);
+DEFINE_OFFLOAD_TRIGGER(keep_link_100m, KEEP_LINK_100M);
+DEFINE_OFFLOAD_TRIGGER(keep_link_1000m, KEEP_LINK_1000M);

You might get warnings about CamelCase, but i suggest keep_link_10M,
keep_link_100M and keep_link_1000M. These are megabits, not millibits.

quoted

+DEFINE_OFFLOAD_TRIGGER(keep_half_duplex, KEEP_HALF_DUPLEX);
+DEFINE_OFFLOAD_TRIGGER(keep_full_duplex, KEEP_FULL_DUPLEX);

What does keep mean in this context?

quoted

+DEFINE_OFFLOAD_TRIGGER(option_linkup_over, OPTION_LINKUP_OVER);
+DEFINE_OFFLOAD_TRIGGER(option_power_on_reset, OPTION_POWER_ON_RESET);
+DEFINE_OFFLOAD_TRIGGER(option_blink_2hz, OPTION_BLINK_2HZ);
+DEFINE_OFFLOAD_TRIGGER(option_blink_4hz, OPTION_BLINK_4HZ);
+DEFINE_OFFLOAD_TRIGGER(option_blink_8hz, OPTION_BLINK_8HZ);

This is very strange. Is option_blink_2hz a trigger on itself? Or just
an option for another trigger? It seems that it is an option, so that I
can set something like
  blink_tx,option_blink_2hz
and the LED will blink on tx activity with frequency 2 Hz... If that is
so, I think you are misnaming your macros or something, since you are
defining option_blink_2hz as a trigger with
 DEFINE_OFFLOAD_TRIGGER

Yes, i already said this needs handling differently. The 2Hz, 4Hz and
8Hz naturally fit the delay_on, delay_of sysfs attributes.

    Andrew