where do i find my USB devices?
You can also
tail -f /var/log/syslog
and watch what happens when you plug it in.
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# cgminer -T
[2013-06-02 21:42:15] Started cgminer 3.2.0
[2013-06-02 21:42:15] Loaded configuration file /root/.cgminer/cgminer.conf
[2013-06-02 21:42:15] USB init, set config 1 in use - CMR device 5:75
[2013-06-02 21:42:15] Icarus detect (5:75) failed to initialise (incorrect device?)
[2013-06-02 21:42:15] USB init, set config 1 in use - CMR device 5:74
[2013-06-02 21:42:15] Icarus detect (5:74) failed to initialise (incorrect device?)
[2013-06-02 21:42:15] No devices detected!
[2013-06-02 21:42:15] Waiting for USB hotplug devices or press q to quit
[2013-06-02 21:42:15] Probing for an alive pool
# cgminer --ndevs
[2013-06-02 21:43:47] USB all: found 17 devices - listing known devices
.USB dev 0: Bus 5 Device 75 ID: 0403:8350
Manufacturer: 'FTDI'
Product: 'Cairnsmore1'
.USB dev 1: Bus 5 Device 74 ID: 0403:8350
Manufacturer: 'FTDI'
Product: 'Cairnsmore1'
[2013-06-02 21:43:47] 2 known USB devices
# bfgminer -T
[2013-06-02 22:11:02] Started bfgminer 3.0.99
[2013-06-02 22:11:02] Loaded configuration file /root/.bfgminer/bfgminer.conf
[2013-06-02 22:11:02] Found ztex board 1.15d or 1.15x
[2013-06-02 22:11:02] ZTEX 04A346E225-1: capability missing: 0 7
[2013-06-02 22:11:02] Probing for an alive pool
[2013-06-02 22:11:02] Network difficulty changed to 12.2M (87.00Th/s)
[2013-06-02 22:11:02] Stratum from pool 0 detected new block
[2013-06-02 22:11:02] Stratum from pool 0 requested work update
[2013-06-02 22:11:02] Pool 1 stratum+tcp://mint.bitminter.com:3333 alive
[2013-06-02 22:11:02] Switching to pool 1 stratum+tcp://mint.bitminter.com:3333
[2013-06-02 22:11:02] Stratum from pool 1 requested work update
[2013-06-02 22:11:03] ECM 0: Frequency set to 200 MHz (range: 50-210)
[2013-06-02 22:11:03] ECM 1: Frequency set to 200 MHz (range: 50-210)
[2013-06-02 22:11:06] ZTX 0: HS FPGA configuration failed: DONE pin does not go high
[2013-06-02 22:11:08] Accepted 7f97b442 ECM 0 pool 1 Diff 2/1
# cgminer -T
[2013-06-02 21:42:15] Started cgminer 3.2.0
[2013-06-02 21:42:15] Loaded configuration file /root/.cgminer/cgminer.conf
[2013-06-02 21:42:15] USB init, set config 1 in use - CMR device 5:75
[2013-06-02 21:42:15] Icarus detect (5:75) failed to initialise (incorrect device?)
[2013-06-02 21:42:15] USB init, set config 1 in use - CMR device 5:74
[2013-06-02 21:42:15] Icarus detect (5:74) failed to initialise (incorrect device?)
[2013-06-02 21:42:15] No devices detected!
[2013-06-02 21:42:15] Waiting for USB hotplug devices or press q to quit
[2013-06-02 21:42:15] Probing for an alive pool
# cgminer --ndevs
[2013-06-02 21:43:47] USB all: found 17 devices - listing known devices
.USB dev 0: Bus 5 Device 75 ID: 0403:8350
Manufacturer: 'FTDI'
Product: 'Cairnsmore1'
.USB dev 1: Bus 5 Device 74 ID: 0403:8350
Manufacturer: 'FTDI'
Product: 'Cairnsmore1'
[2013-06-02 21:43:47] 2 known USB devices
Q: How do I get my BFL/Icarus/Lancelot/Cairnsmore device to auto-recognise?
A: On Linux, if the /dev/ttyUSB* devices don't automatically appear, the only
thing that needs to be done is to load the driver for them:
BFL: sudo modprobe ftdi_sio vendor=0x0403 product=0x6014
Icarus: sudo modprobe pl2303 vendor=0x067b product=0x230
Lancelot: sudo modprobe ftdi_sio vendor=0x0403 product=0x6001
Cairnsmore: sudo modprobe ftdi_sio product=0x8350 vendor=0x0403
On windows you must install the pl2303 or ftdi driver required for the device
pl2303: PL-2303H / 2303HX / 2303HXD Drivers | Prolific USA
ftdi: Virtual COM Port Drivers
# cgminer -T
[2013-06-02 21:42:15] Started cgminer 3.2.0
[2013-06-02 21:42:15] Loaded configuration file /root/.cgminer/cgminer.conf
[2013-06-02 21:42:15] USB init, set config 1 in use - CMR device 5:75
[2013-06-02 21:42:15] Icarus detect (5:75) failed to initialise (incorrect device?)
[2013-06-02 21:42:15] USB init, set config 1 in use - CMR device 5:74
[2013-06-02 21:42:15] Icarus detect (5:74) failed to initialise (incorrect device?)
[2013-06-02 21:42:15] No devices detected!
[2013-06-02 21:42:15] Waiting for USB hotplug devices or press q to quit
[2013-06-02 21:42:15] Probing for an alive pool
# cgminer --ndevs
[2013-06-02 21:43:47] USB all: found 17 devices - listing known devices
.USB dev 0: Bus 5 Device 75 ID: 0403:8350
Manufacturer: 'FTDI'
Product: 'Cairnsmore1'
.USB dev 1: Bus 5 Device 74 ID: 0403:8350
Manufacturer: 'FTDI'
Product: 'Cairnsmore1'
[2013-06-02 21:43:47] 2 known USB devices
# cgminer -T
[2013-06-02 21:42:15] Started cgminer 3.2.0
[2013-06-02 21:42:15] Loaded configuration file /root/.cgminer/cgminer.conf
[2013-06-02 21:42:15] USB init, set config 1 in use - CMR device 5:75
[2013-06-02 21:42:15] Icarus detect (5:75) failed to initialise (incorrect device?)
[2013-06-02 21:42:15] USB init, set config 1 in use - CMR device 5:74
[2013-06-02 21:42:15] Icarus detect (5:74) failed to initialise (incorrect device?)
[2013-06-02 21:42:15] No devices detected!
[2013-06-02 21:42:15] Waiting for USB hotplug devices or press q to quit
[2013-06-02 21:42:15] Probing for an alive pool
# cgminer --ndevs
[2013-06-02 21:43:47] USB all: found 17 devices - listing known devices
.USB dev 0: Bus 5 Device 75 ID: 0403:8350
Manufacturer: 'FTDI'
Product: 'Cairnsmore1'
.USB dev 1: Bus 5 Device 74 ID: 0403:8350
Manufacturer: 'FTDI'
Product: 'Cairnsmore1'
[2013-06-02 21:43:47] 2 known USB devices