Topic for #qi-hardware is now Copyleft hardware - http://qi-hardware.com | hardware hackers join here to discuss Ben NanoNote, atben / atusb 802.15.4 wireless, and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs
xwalk_ has joined #qi-hardware
he2 has quit [Ping timeout: 268 seconds]
he2 has joined #qi-hardware
he2 has quit [Ping timeout: 272 seconds]
antgreen has quit [Ping timeout: 240 seconds]
mirko has joined #qi-hardware
jurting has quit [Remote host closed the connection]
xiangfu has joined #qi-hardware
xwalk_ has quit [Quit: Leaving]
xiangfu has quit [Read error: Connection reset by peer]
xiangfu has joined #qi-hardware
GNUtoo has quit [Ping timeout: 246 seconds]
panda has joined #qi-hardware
panda is now known as Guest5922
panda|x201 has quit [Ping timeout: 240 seconds]
<qi-bot>
Pete Ippel ‽: In addition @fabricatorz @billkendrick @openclipart @sharism @qihardware I'm also planning on giving the presentation on a @Milkymistvj ( 235606080116359168@hypermodern - 40s ago via HootSuite )
jekhor has joined #qi-hardware
valhalla has quit [Ping timeout: 248 seconds]
Hoolxi has quit [Ping timeout: 245 seconds]
Hoolxi has joined #qi-hardware
AwAyla has quit [Quit: Lost terminal]
kristoffer has joined #qi-hardware
pabspabspabs has joined #qi-hardware
pabs3 has quit [Ping timeout: 245 seconds]
pabspabspabs is now known as pabs3
he2 has joined #qi-hardware
he2 has quit [Ping timeout: 252 seconds]
valhalla has joined #qi-hardware
pabs3 has quit [Ping timeout: 246 seconds]
pabs3 has joined #qi-hardware
scientes has quit [Ping timeout: 245 seconds]
pabs3 has quit [Ping timeout: 246 seconds]
pabs3 has joined #qi-hardware
pabspabspabs has joined #qi-hardware
kilae has joined #qi-hardware
pabs3 has quit [Ping timeout: 246 seconds]
pabspabspabs is now known as pabs3
jekhor has quit [Ping timeout: 268 seconds]
pabspabspabs has joined #qi-hardware
pabs3 has quit [Ping timeout: 272 seconds]
kristoffer has quit [Quit: This computer has gone to sleep]
kristoffer has joined #qi-hardware
he2 has joined #qi-hardware
jekhor has joined #qi-hardware
pabspabspabs has quit [Ping timeout: 246 seconds]
Textmode has quit [Ping timeout: 255 seconds]
he2 has quit [Ping timeout: 265 seconds]
pabspabspabs has joined #qi-hardware
Textmode has joined #qi-hardware
jekhor has quit [Ping timeout: 252 seconds]
Textmode has quit [Ping timeout: 255 seconds]
pabspabspabs is now known as pabs3
GNUtoo has joined #qi-hardware
jurting has joined #qi-hardware
Textmode has joined #qi-hardware
kristoffer has quit [Remote host closed the connection]
kristoffer has joined #qi-hardware
jekhor has joined #qi-hardware
pabs3 has quit [Quit: Don't rest until all the world is paved in moss and greenery.]
pabs3 has joined #qi-hardware
GNUtoo has quit [Remote host closed the connection]
GNUtoo has joined #qi-hardware
he2 has joined #qi-hardware
xiangfu has quit [Ping timeout: 246 seconds]
GNUtoo has quit [Quit: Program received signal SIGSEGV, Segmentation fault.]
paul_boddie has joined #qi-hardware
<paul_boddie>
Hello again! I did some Wiki tidying, but is there any information about getting OpenWrt build changes adopted anywhere?
<wpwrak>
hmm, not sure we have a formal process. i guess posting to the qi-hw list or discussing the changes here ought to do the trick
<wpwrak>
wolfspraul: someone here badly needs access to downloads.qi-hardware.com ;-)
<paul_boddie>
It looked like libsdl_mixer wasn't linking to the Vorbis libraries, and I think someone misunderstood the logic in the configure script for that package, so there's a change to the build Makefile there.
<paul_boddie>
The only thing stopping pygame working was the mention of two undesirable libraries in the build configuration. I was really happy to see pygame in the image supplied on the NanoNote, but was disappointed to see it disappear in later images.
<wpwrak>
maybe wait a bit to see if someone who's working on openwrt responds here. people who should be able to help with further steps include mth, ayla, kyak, and xiangfu
<wpwrak>
if everyone is away, enjoying a beer while watching scantly clad girls playing beach volleyball, then you could just post to the list
<paul_boddie>
But I thought the Olympics were over! :-)
<paul_boddie>
I'll probably also post to the list, too, as I was just looking for some quick answers here.
<paul_boddie>
The only real answers I need would be related to compiling numpy, but I suspect that the toolchain doesn't support the necessary floating point functionality in target programs.
<wpwrak>
dunno. does numpy need something unusual ?
<paul_boddie>
It includes <fenv.h> which does exist in uClibc but isn't installed as part of the working toolchain. There seems to be workarounds for Cygwin, but I suspect that these are nasty hacks that only work on x86(-64).
<paul_boddie>
I might look at the Vorbis/Tremor stuff for inspiration, however.
<mth>
wpwrak: we're using buildroot, not openwrt, for OpenDingux; there are lots of similarities though
<kyak>
paul_boddie: probably the best way is to send patches to mailing list, someone will take care and merge them
<wpwrak>
hmm, fenv.h even seems to be in POSIX. first time i see it, though
<paul_boddie>
mth: I'm using the openwrt-xburst stuff.
<paul_boddie>
kyak: I guess I'll do that, then. Thanks!
<mth>
the use of tremor instead of the plain libvorbis is important, since softfloat is very slow
<wolfspraul>
paul_boddie: just stay in this channel and/or wait for xiangfu's reply, we will definitely get this folded into the builds...
<wolfspraul>
you are at the right place here :-)
<paul_boddie>
mth: Thanks for the link! I've noticed that if I play Vorbis in pygame it works well, but if I use the play command the sound breaks up badly. So I imagine that there's a linkage change possible with that program, too.
<paul_boddie>
I think the SDL mixer stuff was combining --disable-music-ogg with --enable-music-ogg-tremor (and also enabling dynamic loading and explicitly using the tremor library), but without looking at the configure logic, I guess that --disable-music-ogg just short-circuits everything and disables all support.
<paul_boddie>
wolfspraul: Do you remember any discussions about floating point support?
<wolfspraul>
not really
<wolfspraul>
I think there is no hw floating point support on the Ben, and software support is slow...
<wolfspraul>
something like that
<paul_boddie>
I should really search a bit harder in the uClib documentation for such things, I suppose.
<paul_boddie>
By the way, I think the result of everyone's hard work putting the device together and getting the software onto it is really amazing. :-)
<wolfspraul>
thanks!
<wolfspraul>
:-)
<wolfspraul>
that was and continues to be extremely hard indeed
<wolfspraul>
lots of people helped...
<wolfspraul>
btw today is bison day for me. I'm dusting off my old parser knowledge :-)
<wolfspraul>
so far it doesn't really work yet, but I know with bison you have to be a little patient at the beginning, and will be rewarded richly over time :-)
<paul_boddie>
After trying a few images out at the weekend, I spent some time reading the list archives to see what discussion I might have missed - I only ever vaguely followed the different projects here, I'm afraid - but I regard the result as a genuine success, even if not everybody's goals were met.
<paul_boddie>
I'm really looking forward to trying out some projects, possibly fixing up some stuff on the way, and perhaps eventually getting some low-level software or hardware experience.
antgreen has joined #qi-hardware
<mth>
I'm not sure how the openwrt for the NanoNote handles it, but for OpenDingux we have a toolchain that uses softfloat by default
<mth>
there is no hw floating point in Ingenic CPUs until I think JZ4760
<mth>
and the in-kernel FPU emulation is much slower still than softfloat
<paul_boddie>
I've not really looked at the toolchain configuration yet. I used to use ARM CPUs when they were first around, and the lack of floating point hardware often led to a range of strategies for optimising performance. For pygame, I found that instead of needing numpy, which is a huge bundle of tangential stuff, I can probably use the pixel array support instead, and I suppose there will be similar workarounds for other software.
GNUtoo has joined #qi-hardware
rejon has joined #qi-hardware
<paul_boddie>
I guess the uClibc settings of interest are UCLIBC_HAS_FLOATS and UCLIBC_HAS_FPU.
<paul_boddie>
And, of course, UCLIBC_HAS_FENV. Maybe that is set as a consequence of the others being set or unset.
<paul_boddie>
There seems to be a CONFIG_SOFT_FLOAT setting in the OpenWrt, perhaps similar to the BR2_SOFT_FLOAT in buildroot.
<jow_laptop>
yes, that just results in -msoft-float for gcc calls (openwrt softfloat option)
<paul_boddie>
Would it give me fenv.h? :-)
<jow_laptop>
likely not
<jow_laptop>
I only have some C++ related fenv.h here
<jow_laptop>
it provides ::fenv_t and ::fexcept_t
<jow_laptop>
but no equivalent for C
kuribas has joined #qi-hardware
<paul_boddie>
I'd have to take a look. I swear I saw an fenv.h for C in the uClibc sources as well as the C++ wrapper that appears to get installed, but I'd have to look again and understand what it's for, too.
DocScrutinizer05 has quit [Disconnected by services]
DocScrutinizer05 has joined #qi-hardware
DocScrutinizer has quit [Disconnected by services]
DocScrutinizer has joined #qi-hardware
Openfree has joined #qi-hardware
he2 has quit [Read error: Connection timed out]
he2 has joined #qi-hardware
Aylax has joined #qi-hardware
GNUtoo has quit [Quit: Program received signal SIGSEGV, Segmentation fault.]
Openfree has quit [Ping timeout: 245 seconds]
Aylax has quit [Quit: Bye]
Aylax has joined #qi-hardware
Aylax has quit [Client Quit]
Aylax has joined #qi-hardware
Aylax has quit [Client Quit]
Aylax has joined #qi-hardware
Aylax has quit [Client Quit]
Aylax has joined #qi-hardware
antgreen has quit [Ping timeout: 246 seconds]
Aylax has quit [Quit: Bye]
Aylax has joined #qi-hardware
Aylax has quit [Client Quit]
Aylax has joined #qi-hardware
wej has quit [Ping timeout: 248 seconds]
jekhor has quit [Ping timeout: 248 seconds]
wej has joined #qi-hardware
Aylax- has joined #qi-hardware
Aylax has quit [Read error: Connection reset by peer]
GNUtoo-netbook has joined #qi-hardware
rejon has quit [Ping timeout: 246 seconds]
rejon has joined #qi-hardware
rejon_ has joined #qi-hardware
rejon has quit [Ping timeout: 256 seconds]
GNUtoo-netbook has quit [Ping timeout: 246 seconds]
he2 has quit [Ping timeout: 240 seconds]
Textmode has quit [Read error: Connection reset by peer]
Textmode has joined #qi-hardware
emeb has joined #qi-hardware
GNUtoo has joined #qi-hardware
scientes has joined #qi-hardware
kilae has quit [Quit: ChatZilla 0.9.88.2 [Firefox 14.0.1/20120713134347]]
mirko has quit [Remote host closed the connection]
mirko has joined #qi-hardware
Ayla has joined #qi-hardware
GNUtoo has quit [Quit: Program received signal SIGSEGV, Segmentation fault.]
Aylax- has quit [Ping timeout: 246 seconds]
Aylax has joined #qi-hardware
Aylax has quit [Client Quit]
he2 has joined #qi-hardware
zear_ has joined #qi-hardware
Jay7x has joined #qi-hardware
bartbes_ has joined #qi-hardware
zear has quit [*.net *.split]
kristianpaul has quit [*.net *.split]
Jay7 has quit [*.net *.split]
bartbes has quit [*.net *.split]
newcup has quit [*.net *.split]
kristianpaul has joined #qi-hardware
kristianpaul has joined #qi-hardware
scientes has quit [Read error: Connection reset by peer]
zear_ has quit [Ping timeout: 245 seconds]
zear- has joined #qi-hardware
scientes has joined #qi-hardware
scientes has quit [Client Quit]
scientes has joined #qi-hardware
Jay7x is now known as Jay7
jekhor has joined #qi-hardware
he2 has quit [Remote host closed the connection]
lindi-_ is now known as lindi-
scientes_ has joined #qi-hardware
newcup has joined #qi-hardware
scientes has quit [Ping timeout: 246 seconds]
guanucoluis has joined #qi-hardware
kristianpaul has quit [Remote host closed the connection]
kristianpaul has joined #qi-hardware
kristianpaul has joined #qi-hardware
kristoffer has quit [Quit: Leaving]
scientes_ has quit [Ping timeout: 246 seconds]
Jay7 has quit [Read error: Connection reset by peer]
Jay7 has joined #qi-hardware
scientes_ has joined #qi-hardware
jekhor has quit [Ping timeout: 272 seconds]
scientes_ has quit [Ping timeout: 244 seconds]
scientes_ has joined #qi-hardware
scientes_ has quit [Ping timeout: 245 seconds]
jurting has quit [Remote host closed the connection]
scientes_ has joined #qi-hardware
LunaVorax has joined #qi-hardware
<LunaVorax>
hi
<pabs3>
hola
<LunaVorax>
que tal? :P
porchao has quit [Quit: Leaving...]
<pabs3>
no mucho
<LunaVorax>
You don't speak spanish pabs3, right?
<pabs3>
solo un poco
<LunaVorax>
That's great because me neither
<pabs3>
:)
<LunaVorax>
:P
Textmode has quit [Ping timeout: 255 seconds]
kuribas has quit [Quit: ERC Version 5.3 (IRC client for Emacs)]