irtoy: Don't implicitly probe for devices (#70)
irtoy: Don't implicitly probe for devices (#70)

This code is intended to only probe for devices if the device name
is given as "auto".  Regular device names are not probed, and will
generate an error if they doesn't exist or can't be opened correctly.

stb-tester/lirc,stb-tester/lirc,stb-tester/lirc,stb-tester/lirc,stb-tester/lirc,stb-tester/lirc