CGminer v3.8.5 on Broadcom based DD-WRT / OpenWRT

[P_Shep]

For ztex, look at this page:

http://wiki.ztex.de/doku.php?id=en:software:usb_ids

I think it may be possible by setting up the ztex usb device vendor/product ID there as a character device / modprobe.
Though I don't know how.

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[pazor]

thank you p_shep... i will try it

[streblo]

Are you powering your USB hub and router from your PSU? 

[P_Shep]

Are you powering your USB hub and router from your PSU? 

Yep, everything. No inefficient, messy, bulky wall-wart PSUs here

[aseldon]

Are you powering your USB hub and router from your PSU? 

Yep, everything. No inefficient, messy, bulky wall-wart PSUs here

Which adapters are you using to power from the PSU? Are they custom or can they be bought from somewhere?

[P_Shep]

I made them myself, but you can buy some from cablez:
https://bitcointalk.org/index.php?topic=74397.0

[Lomax42]

Has anyone used BitForce SHA256 Single or any of their products? or is it all hype? http://www.butterflylabs.com/product-details/

[rjk]

Has anyone used BitForce SHA256 Single or any of their products? or is it all hype? http://www.butterflylabs.com/product-details/

They're real, I have one and others have many more than me. They do take a while to deliver. Search the forum, there are literally dozens of threads about their products.

[smracer]

What cables are you using to power the bitforce singles from a power suppply?  I am tired of all these power bricks.

[P_Shep]

What cables are you using to power the bitforce singles from a power suppply?  I am tired of all these power bricks.

See 5 posts back

[nelisky]

Hey,

I'm mining on the 3220 (but developed originally on the 3420) with openwrt with great success. I did, however, build the OS from scratch so I could have all dependencies built in.

If you are using the plain vanilla openwrt you will need to install a few things, though I found I didn't have enough space for everything unless I either built one from scratch or used usb storage for the installed modules. I don't have a clear memory of what I needed but I'll be happy to share my kernel .config with you, send me your email on a PM. I can also send you the full firmware file, if you want. That one will most certainly run the cgminer binary compiled for that platform (which I can also share) but has a few odd customizations.

You don't need any specific Cypress drivers, just the normal usb-ohci driver.

[pazor]

yes please do it...

you can use my email adress in my profile

do you have a combination of mr3420/mr3220 + ztex module (1.15x or 1.15y) with cgminer ?

regards
pazor

[streblo]

I am going to try to install DD-WRT/OptWare/CGminer on a E3000 this weekend. How big of a USB key is necessary, I only have a 256MB and >8GB keys, which seem like under and overkill.

I'll definitely send a donation out if this works out!

PS. Speaking of power, how important is it to power the USB hub? I know powered USB hubs are generally built better, but is powering necessary for 12(+4 hubs) devices?

[P_Shep]

They recommend a partition of 512MB for Optware
http://www.dd-wrt.com/wiki/index.php/How_to_-_Format_and_Partition_External_Storage_Device

You can always make another partition for NAS

and you absolutely need a powered hub. Each of those devices may only use a small amount of power, but if they are all getting that power through the router then you're going to stress the router. At least have the hub attached to the router powered.

[nedbert9]

Thanks for keeping this up to date.  Will send some btc later.

[P_Shep]

Updated version:
https://github.com/downloads/pshep/cgminer/cgminer-2.4.1-1-mipsel.tar.gz

Still the same binary, but a few tweaks to the scripts and an all-new serial driver.

I discovered there was a problem with the FTDI drivers. The existing one wasn't quite compatible with the FTDI chip used in the BFL (hence having to add product and vendor IDs when loading the driver). I found newer drivers which had the chip included (FT232H), but these drivers were for later versions of linux kernel than DD-WRT uses, so wouldn't compile.
In the end I had to hack together a driver from the old one as a base and adding in the bits of code needed to get the new chip working. Seems to be working for me so far, but it is quite experimental (read: a hack) so be aware.

The specific issue I found was that when more than 64 bytes were sent by the BFL, the 65th and 66th byte would be lost. This meant that when 6 or more valid nonces were returned by the BFL, the 6th would be corrupted, leading to the 7th and onward being read incorrectly. What was happening was the driver was expecting a packet of only 64 bytes and reading the next two bytes as controls. In fact the packet being sent was much larger and the driver was discarding valid data.

The driver fix does two things:
1. Adds native support for the FT232H (and that's the only device I added)
2. Scans the device for the max packet size, which previously was hard-set to 64 bytes.

At some point I'll put my ftdi_sio.ko code changes on github.

[P_Shep]

Updated for cgminer 2.4.2:

https://github.com/downloads/pshep/cgminer/cgminer-2.4.2-mipsel.tar.gz

[BR0KK]

Any updates on Ztex support?

[nedbert9]

Updated for cgminer 2.4.2:

https://github.com/downloads/pshep/cgminer/cgminer-2.4.2-mipsel.tar.gz

Thanks, P_Shep.  Doughnation sent.

[P_Shep]

Any updates on Ztex support?

I can compile a version with it in, but I don't know that anyone has got it working. Look back through this thread and see if you can get any info from those who have attempted it.

And thanks Ned