On Fri, Nov 4, 2011 at 1:32 PM, David Given <[email protected]> wrote: > Luke Kenneth Casson Leighton wrote: > [...] >> and, why would _any_ free software developer buy one of these >> raspberry pi devices? > > Well, I know why *I* would get one: it's cheap.
would you be interested in anything that has a higher bang-per-buck ratio? or just cheaper? (or both) details on the allwinner A10 are emerging, but they include: * MALI GPU 400 (confirmed) * Cortex A8 (confirmed) * 1.5ghz clock speed (to be confirmed) * definitely 512mb DDR3 800mhz RAM (up to 2gb to be confirmed) * up to 2160p video (yes, twice the width of 1080p) * 4 SDIO ports (one of which at least is SD 3.0) * USB-OTG as well as a 2nd USB-HOST port * 10/100 Ethernet * SATA-II details are sketchy because even the company selling the chip has been caught by surprise, is supplying a reference design which is going straight into production pretty much "as-is" - nobody's asking "can this do any better", except me! really really weird situation :) my contact in china _has_ obtained the GPL source code: as they are not software developers i am working with them to get it out onto a free software repository. we have 5 people interested already (but are going to do this "by the book". so, i get to take all the risk first, confirm it's all working, then we go to 2nd stage release, _then_ we go wider release) > Vastly cheaper than the > alternatives, and for a lot of people, cheapness beats Freeness. so, what would you be prepared to pay for something with the above specs, especially given that it will have the GPL source code available in advance, and you'd have an indirect line to the manufacturer and the factory to get relevant questions answered if you wanted "in" at the very early stages. > If the > blobs are available to drive the exotic features, then I can make it > work. the Allwinner A10 has the "usual" non-free MALI 3D driver arrangement. you're no doubt familiar with that, in that it gets qualified as "system library" under GPL exemption clauses, and thus can actually remain non-free, even though nobody likes the situation. > If not, I could still get useful work out of it without those > features --- I know someone who's considering a Pi Model A to build an > battery-powered internet radio, for example. would a PCMCIA form-factor (85x55mm) work for them? especially if it could be powered by USB-OTG, and there were at least 16 GPIO pins? > Of course, I'd rather have something that was properly supported by free > software. But I'd rather have a Pi than not have anything at all. > > Incidentally, are there *any* GPUs of this grade that have Free drivers > of comparative quality to the proprietary ones? *sigh* it's a matter of power. the architecture of separate ICs (usually northbridge/southbridge) simply doesn't work for this level of ultra-low-power. i spoke to Via almost a year ago, now: the absolute best that could be done was 6 (six!) watts, and that was with a 65nm CMOS "low-power" GPU that would have to be ramped down in voltage and clock-rate in order to _only_ use 6 watts... continuously. excluding its separate RAM, and excluding the main CPU and _its_ RAM! there is one - _one_ sub-2watt GPU that i could find which was 2D, it's the Volari Z11 - it's the one that's in the OpenRD Ultimate. it's... rubbish, but it is slowly gaining free software driver support thanks to the adoption of the OpenRD Ultimate. you really _really_ don't have any choices, basically. what's highly amusing is that the companies doing the integrated 3D GPU macros are now being bought up! one company with a SoC becomes beholden to a competitor for access to drivers and source code! hilarious, really. l. -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/CAPweEDwy0UtgxazEb5Rw=8=rbdpzeemcp7drpfjhf7zjwfo...@mail.gmail.com
