you on linux or windows?
im running win7.
if i get it running ill post install log too. but i just received my new PC parts today too, which to setup first! haha.
I'm running it in a Win7 virtual machine, I guess it's the easiest.
Already installed driver from OP, device detected. Using
12V@1A=12W power supply i.e. weak, but specs give 7W power usage for scrypt only, which is the only mode that I intend to use. Using 12V rated for 30A=360W now, but it didn't help
Edit: installing the mining software now, I have the following I/O but it doesn't seem to be mining anything right now (logs seems to indicate that it keeps receiving stuff, but sending nothing back)
C:\Users\matt\Documents\cpuminer-2.3.2-GC3355-win32>minerd --freq=600 --gc3355=COM5 --url=stratum+tcp://litecoinpool.org:3333 --userpass=xxxx.xxxx:xxxx
[2014-02-24 09:14:30] Starting Stratum on stratum+tcp://litecoinpool.org:3333
[2014-02-24 09:14:30] GC3355 chip mining thread started, in SINGLE mode
[2014-02-24 09:14:30] open UART device COM5
←[1;33m>>> LTC :←[0m 55aaef020000000000000000000000000000000000000000
←[1;33m>>> LTC :←[0m 55aaef3040000000
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aaef000500e082
[2014-02-24 09:14:30] set GC3355 core frequency to 600Mhz
[2014-02-24 09:14:31] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000fcff030000c33c1de8fe991e8f02822b19dc2a76161fa6255f5a6f627e55446686b9a89f25000
00002030235e618ed4808c9780d9fa5b2fc78c32c20a0d11d3d95cd4569be8d603fd48e430a31faad3e103554595a9e9884497a573b699af7e248fc5f056539baa5aa530aff3e1b16d3ff00000000fff
fffff
[2014-02-24 09:14:35] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000fcff030000ad6a48da411f92bc46d739ff18168de8d2f0f269f19461044de4a7d82d6b9805000
00002030235e618ed4808c9780d9fa5b2fc78c32c20a0d11d3d95cd4569be8d603fd41f553c4bddf4fd7ceeb3dcc735fce3e4918caba6cf3bb42f457169bae5bea7fe530aff6b1b16d3ff00000000fff
fffff
[2014-02-24 09:15:21] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000fcff0300007409228b045f1822c841baaab2fdc27e7e02382ca4e5fcbc79d571fac311ac35000
00002030235e618ed4808c9780d9fa5b2fc78c32c20a0d11d3d95cd4569be8d603fd4c735bd8c463151aed8829c7fead789b57eb629d0c2a5f50013f23ca2a94ceeae530aff981b16d3ff00000000fff
fffff
[2014-02-24 09:16:05] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000fcff030000dcefcce913c15e6a9c6b72a8d82515e058fe4ecb452fd7c80de47c569b6c029d000
00002030235e618ed4808c9780d9fa5b2fc78c32c20a0d11d3d95cd4569be8d603fd490441e292465c97e83d08f6ae0c858532be4a9458958366c4d49a8bec5e1ceef530affc51b16d3ff00000000fff
fffff
[2014-02-24 09:16:50] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000f0ff0f00002db4f73db172afe8d88b6324f0fc707fd7d59e15ba2cf9d80481a1ef47394df9000
00002030235e618ed4808c9780d9fa5b2fc78c32c20a0d11d3d95cd4569be8d603fd49367e0c145b5766333321f47d223c9c776ba8101be6ab20afdcf8479c53a0286530afff21b16d3ff00000000fff
fffff
[2014-02-24 09:17:35] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000f0ff0f0000419c1545336d1b2f91235e9daf3a5e27c730c76b3c606dc3bc69fe23ad4fe1af000
00002030235e618ed4808c9780d9fa5b2fc78c32c20a0d11d3d95cd4569be8d603fd40ee92be5b185464d58af883ff53af462e2ee56a929c31e24e51f98c3ba8bbe45530b001f1b16d3ff00000000fff
fffff
[2014-02-24 09:17:44] Stratum detected new block
[2014-02-24 09:17:44] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000f0ff0f0000c80d0249a1c85f00b5d0b1ac6f10d8e7b1cc882d100b82b9f7c86798ac37c08b000
00002345667a155c4f1c96b3c3f34461e880dfe3dfa59a53b7ddc76a0a324bffb43c1b48a7781d23c5923c2f3c8cfe78e551602492317051654370ce65addf8dd4807530b00281b16d3ff00000000fff
fffff
[2014-02-24 09:18:29] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000f0ff0f0000ed9d5544d09ba6f41fdc54d21e875a743b027c53c97b75681b0e5aaed26faad3000
00002345667a155c4f1c96b3c3f34461e880dfe3dfa59a53b7ddc76a0a324bffb43c1108b7e93ee7cde8cf344297cfe38d3730f856f3d5830aa1d12a1604053dfb577530b00551b16d3ff00000000fff
fffff
[2014-02-24 09:19:14] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000c0ff3f00009617531bcd928998cb14403a5e0eb104d028ff7b9f42170e6757279116f5c6a0000
00002345667a155c4f1c96b3c3f34461e880dfe3dfa59a53b7ddc76a0a324bffb43c1868c969606fef44f4009ad921f82368d5a82b684fd3b9725435358f93b609749530b00821b16d3ff00000000fff
fffff
[2014-02-24 09:19:59] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000c0ff3f0000d07abcd80a5c79f56a4b9f20c13bff16d9201c0a84a7b6e82fdf8cd99659c66c000
00002345667a155c4f1c96b3c3f34461e880dfe3dfa59a53b7ddc76a0a324bffb43c10e4528f26840a71ed6a3992170cc3a5ed384b318c0093fa7d89bcd7d5f28a6ba530b00af1b16d3ff00000000fff
fffff
[2014-02-24 09:20:44] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000c0ff3f0000067bb487d3fed3d570a80ca76e5a26ab17db54a60918a15cb34b1474d7d3ed0b000
00002345667a155c4f1c96b3c3f34461e880dfe3dfa59a53b7ddc76a0a324bffb43c12e35e8ab446c9c74216f867b5784963a40ef141b2911c8de600c46a80dab2a18530b00dc1b16d3ff00000000fff
fffff
[2014-02-24 09:21:06] Stratum detected new block
[2014-02-24 09:21:07] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000c0ff3f00004d64c4bc7c043824c6ab3ac9c21e0e7b9912988b9dd128f4c070bf304f42e094000
000026b358d268136f8937bc6d189857b371367af3c0ce8b1825923a424295e2468a688fa9e23fd46c20cb5ce642f212a1588d6c9fc8e88800d4c7b06e592fc7521e3530b00f21b16d3ff00000000fff
fffff
[2014-02-24 09:21:21] Stratum detected new block
[2014-02-24 09:21:21] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000c0ff3f00007ca2591243ddebe3ef382721b43c58fe75013f7b2c27d7dbfab160b2bc2dc0ca000
00002c2ad18347e773a69c7383de48826e9dfb2a128e2991f59a9bbe942e048ab1c9b28d278f835095f588bb4edb11cb38caee2d86f81a099f58040cd1ba820b7fe4d530b01001b16d3ff00000000fff
fffff
[2014-02-24 09:21:44] Stratum detected new block
[2014-02-24 09:21:45] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000c0ff3f000066bf93b45ab6572a2ae872fa3e3de821dfb5ee750bc82f866a6d95458087a43e000
00002c83bff006fd55264141646adf223de8181d522f9a93efa6487dcb6d3c087a6c702c16df3d9d7067dd52f31a101746bd10fc64d9d926ece99141a666902725b48530b01181b16d3ff00000000fff
fffff
[2014-02-24 09:22:30] dispatching new work to GC3355 LTC core
←[1;33m>>> LTC :←[0m 55aa1f2810000000
←[1;33m>>> LTC :←[0m 55aa1f2813000000
←[1;33m>>> LTC :←[0m 55aa1f00000000000000000000000000000000000000000000000000000000c0ff3f000060be39c32c05a19463877e3b103066a87cd18792956244f88bc93b547c101c8e000
00002c83bff006fd55264141646adf223de8181d522f9a93efa6487dcb6d3c087a6c763fbd5efd6005eb05e78c7a16a7b18d4475bd240c1aef2a6fff486f02544014c530b01451b16d3ff00000000fff
fffff
...
If anyone knows what I'm doing wrong, I'm all ears. I already moved it to a high power PSU so it shouldn't be the issue
***
Apparently the modded CPUMiner above only works for the USB single-chip version.
All the help and info that I found here and other forums always assume that we are using the controller that we don't have.
So I guess I'll wait for rescue from Beastlymac on this one

Try rebooting and switching the USB port you are using on your computer. You can also try uninstalling the driver from that port and plugging it in again.
minerd --freq=750 --gc3355=COM5 -o stratum+tcp://useast.wafflepool.com:3333 -O
See if that works.