When you start bfgminer not find USB device.

[jimbo12]

I have a tablet android 4.1.1 instaleld a small version of linux 13.10.
I am using bfgminer, compiling the mining Bifur I'm using usb miner.
When you start bfgminera I will report the error:
"libusb_init () failed err -99"
No device detected!
Can you tell me please someone help me how to fix it?
Thank you all for help.

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[vm1990]

i like the idea and havnet seen many people attempt to do this.

1. what make and model of tablet
2. the tablet wont supply enough power for most devices as most tablets are limited to putting out around 200ma (most arnt designd for more than a keyboard and mouse) so you would need a good USB2 hub for the power

[jimbo12]

I have a dual core processor 1.6 GHz.
Error found the device occurs when I have usb miner switched directly in the OTG cable.
I do not use a USB hub.

[vm1990]

I have a dual core processor 1.6 GHz.
Error found the device occurs when I have usb miner switched directly in the OTG cable.
I do not use a USB hub.

have you installed the drivers?
http://www.silabs.com/products/mcu/pages/usbtouartbridgevcpdrivers.aspx

[jimbo12]

I have not installed these drivers.
You can write me how to download these drivers in Linux?
I am a beginner.

[vm1990]

I have not installed these drivers.
You can write me how to download these drivers in Linux?
I am a beginner.

im not very good with linux so which version are you using?

[jimbo12]

13.10 small

[Newar]

I have not installed these drivers.
You can write me how to download these drivers in Linux?
I am a beginner.

I build on Lubuntu not too long ago and don't recall having to install any drivers. You need to use the appropriate flag when building though.

https://github.com/luke-jr/bfgminer/blob/bfgminer/README
https://github.com/luke-jr/bfgminer/blob/bfgminer/README.ASIC


I don't see you mentioning which USB mining hardware you are using?

[jimbo12]

I use usb miner Bifur.

[Newar]

What is your libusb version?

[jimbo12]

1.0.

[prachait]

i like the idea and havnet seen many people attempt to do this.

1. what make and model of tablet
2. the tablet wont supply enough power for most devices as most tablets are limited to putting out around 200ma (most arnt designd for more than a keyboard and mouse) so you would need a good USB2 hub for the power

I got the same issue with my CentOS VPS Server today.
Any solutions ?

[crazyearner]

Try using multi miner software should solve all your problems as this detects all types of usb miners without problems.

If you need the drivers for it you can download them fro mtheri site http://www.multiminerapp.com/ just scroll down to drivers and chose what usb you have install the drivers then reboot system. Once installed then start up your miners and load up multiminer app and this should start to detect them and then you just need to set up your pools to mine on then your good to go. for multiminer support see thread https://bitcointalk.org/index.php?topic=248173.0

[-droid-]

Wouldn't the \\.\ cmd work? Or are the com ports in Linux different?

[alh]

Wouldn't the \\.\ cmd work? Or are the com ports in Linux different?

The syntax you provided is Windows centric in nature. As a general guide, backslashes (i.e. \ ) are for Windows, and forward slashes (i.e. / ) is for Linux. USB mining devices will usually show up as /dev/ttyUSB devices. My limited experience with bfgminer under Linux didn't include a specific device references, it just "found" them.

I didn have to build bfgminer at the time, and make sure to include the proper device support for the type of miner. I would almost certainly use cgminer now under Linux.