Quote from: tyknee on April 05, 2014, 04:49:59 PM

minerd --gc3355=/dev/ttyACM0 --url=stratum+tcp://sf.clevermining.com:3333 --user=1M698hKVYQ9h5zEntcUetp84t4Eq3xetfd --pass=x -P

minerd --version
cpuminer 2.3.2
libcurl/7.19.7 NSS/3.14.0.0 zlib/1.2.3 libidn/1.18 libssh2/1.4.2

Here is the output:

[2014-04-05 10:55:20] Stratum detected new block
[2014-04-05 10:55:21] dispatching new work to GC3355 LTC core
>>> LTC : 55aa1f2810000000
>>> LTC : 55aa1f2813000000
>>> LTC : 55aa1f00000000000000000000000000000000000000000000000000000080ff7f0000008463409 1806acf3e5281d91177f758a9495700f1a2c3dceb843fb9a136bff83c000000020e9b315c44677a c116d5a4c500f34310b00aa662091ae0ed61e65a5b34dfead558791233f2da3253a07ea14e15dac fe196091dcb0137a5cadf7a6f987d9f0c9b534035781b3e07d600000000ffffffff

(Similar data repeats every few seconds or so)

If you don't get any "accepted: X/Y (Z%), 0.0 khash/s (yay!!!)" or "(booooo)"s at least once in
5-10 minutes (avg. ~2 min on clever), something is wrong and your miner isn't submitting shares.
(Do the miner actually blink red sometimes?)

Is your miner working? Blinking green?
Do you have it connected via a powered USB hub? - And have sufficient 12V?

And you're sure the config is 100% correct - and is the running config?
Did you try it with "-D" to debug - and checked out at least the top 10-100 lines after startup?

Did you try it on a different pool, or perhaps you could try bfgminer or cgminer instead of cpuminer?