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SUPPORTED DEVICES
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Currently supported devices include the Avalon and the Butterfly Labs SC range
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of devices. The BFL devices should come up as one of the following:
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BAJ: BFL ASIC Jalapeño
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BAL: BFL ASIC Little Single
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BAS: BFL ASIC Single
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BAM: BFL ASIC Minirig
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GETTING STARTED WITH BUTTERFLY LABS ASICS
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Unlike other software, cgminer uses direct USB communication instead of the
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ancient serial USB communication to be much faster, more reliable and use a
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lot less CPU. For this reason, setting up for mining with cgminer on these
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devices requires different drivers.
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WINDOWS:
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On windows, the direct USB support requires the installation of a WinUSB
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driver (NOT the ftdi_sio driver), and attach it to the Butterfly labs device.
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The easiest way to do this is to use the zadig utility which will install the
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drivers for you and then once you plug in your device you can choose the
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"list all devices" from the "option" menu and you should be able to see the
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device as something like: "BitFORCE SHA256 SC". Choose the install or replace
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driver option and select WinUSB. You can either google for zadig or download
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it from the cgminer directoy in the DOWNLOADS link above.
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LINUX:
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On linux, the direct USB support requires no drivers at all. However due to
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permissions issues, you may not be able to mine directly on the devices as a
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regular user without giving the user access to the device or by mining as
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root (administrator). In order to give your regular user access, you can make
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him a member of the plugdev group with the following commands:
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sudo usermod -G plugdev -a `whoami`
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If your distribution does not have the plugdev group you can create it with:
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sudo groupadd plugdev
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In order for the BFL devices to instantly be owned by the plugdev group and
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accessible by anyone from the plugdev group you can copy the file
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"01-cgminer.rules" from the cgminer archive into the /etc/udev/rules.d
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directory with the following command:
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sudo cp 01-cgminer.rules /etc/udev/rules.d/
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After this you can either manually restart udev and re-login, or more easily
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just reboot.
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AVALON DEVICES
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Currently all known Avalon devices come with their own operating system and
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a preinstalled version of cgminer as part of the flash firmware, based on the
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most current cgminer version so no configuration should be necessary. It is
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possible to plug a USB cable from a PC into the Avalon device and use the
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--avalon-options copying the command as used by the internal router used by the
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Avalon. However since the Avalon code still currently uses the old serial usb
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interface and is being rewritten to use direct USB, it is prudent to not be
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dependent on this command long term, assuming it will go away.
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---
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This code is provided entirely free of charge by the programmer in his spare
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time so donations would be greatly appreciated. Please consider donating to the
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address below.
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Con Kolivas <kernel@kolivas.org>
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15qSxP1SQcUX3o4nhkfdbgyoWEFMomJ4rZ
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