Insteon: Scan_All_Links Stalls if Nack Received

[krkeegan]

I have not confirmed this yet, but in a recent scan all links returned the following error:

WARN!! encountered a nack message () for $f_dn_lt_ma. It may be unplugged, have a burned out bulb, or this may be a new I2CS type device that must first be manually linked to the PLM using the set button.

At this point Scan_Links stopped. Presumably there is no call to the failure callback.

[mstovenour]

This is fixed in the i2_aldb_support branch and works for all device types. Indeed there was no error callback.