i did have it on S1 S3 and S5 the only one i could get it to hash on was a S5 . for S1 and S3 it worked but wouldn't hash even posted a few pages back asking what might be wrong no one seemed to care, so i gave up.
even had the right openwrt links set up right in the opkg.conf file . you have to go to the open WRT site and find the old links to attitude_adjustment/12.09/ar71xx/packages/Packages.gz, they have sense been archived sense they kind of are no longer supported .
i wanted to at least get it working on a s1 and s3 but didn't happen for me,and the problem with S5 it works great seems to work better then the cgminer version bitmain hacked in but after a reboot it's gone
:. bitmain set it up that way, sigh.
GL,
to install bfgminer on openwrt you need to install lukes packages path.
http://luke.dashjr.org/programs/bitcoin/files/bfgminer/5.4.1/openwrt/12.09/READMEbfgminer on the s3 might be working, but it wont show up in the ui.. since it uses a differnt style api then cgminer.
and the s5 does have a read only file system
I used the command interface not the antminer ui for the s1 s3 it just wouldn't hash it loaded the pool etc but then gave some strange error, i tried for weeks so now about all i use BFG for is Scrpt miners,
I'm a big fan of BFG.
the only way i could see anything working number wise on the S5 was the black screen command line ui.
or find a BFG .IPk file some place and load it off a external drive or in the tmp folder using opkg install ipk name or find a tr.gz file and use the tz command but you need a tested working molded one with everything in it for that to work , the problem with S1 and S3 is no room on the controller if you try to install it the S5 way it Polly would work that way but no room and it might install off a external drive on the s1/3, i just gave up.I'm not even gonna try on my C1 it has the same read only file system.
BTW i have a Avalon 4.1 working on a Rasp pi 2 not the B version they never really gave the Avalon4.1 the right rpi 2 support like they have for the A6 that i could find, once I'm able to figure out how to load the right openwrt on any PI , i can use the Avalon TZ gz file for Avalon 4.1 or A6 file, for any PI type PC with out having to rewrite a thing
,
cya