I tryed to run cgminer and got this message:
[2013-06-24 23:54:36] USB init, open device failed, err -12, you need to install a WinUSB driver for - BLT device 1:3
[2013-06-24 23:54:36] Icarus detect (1:3) failed to initialise (incorrect device?)
[2013-06-24 23:54:42] USB init, open device failed, err -12, you need to install a WinUSB driver for - BLT device 1:3
[2013-06-24 23:54:42] Icarus detect (1:3) failed to initialise (incorrect device?)
[2013-06-24 23:54:47] USB init, open device failed, err -12, you need to install a WinUSB driver for - BLT device 1:3
[2013-06-24 23:54:47] Icarus detect (1:3) failed to initialise (incorrect device?)
How can I fix it?
From FPGA-README:
This README contains extended details about FPGA mining with cgminer
For ModMinerQuad (MMQ) BitForce (BFL) and Icarus (ICA, BLT, LLT, AMU, CMR)
--------------------------------------------------------------------------
When mining on windows, the driver being used will determine if mining will work.
If the driver doesn't allow mining, you will get a "USB init," error message
i.e. one of:
open device failed, err %d, you need to install a Windows USB driver for the device
or
claim interface %d failed, err %d
The best solution for this is to use a tool called Zadig to set the driver:
http://sourceforge.net/projects/libwdi/files/zadig/This allows you set the driver for the device to be WinUSB which is usually
required to make it work if you're having problems
With Zadig, you may need to run it as administrator and if your device is
plugged in but you cannot see it, use the Menu: Options -> List All Devices
You must also make sure you are using the latest libusb-1.0.dll supplied
with cgminer (not the libusbx version)
When you first switch a device over to WinUSB with Zadig and it shows that
correctly on the left of the Zadig window, but it still gives permission
errors, you may need to unplug the USB miner and then plug it back in