On Sat, May 31, 2014 at 9:38 AM, Paul Sokolovsky pmiscml@gmail.com wrote:
Hello,
On Fri, 30 May 2014 21:50:34 -0400 Stefan Monnier monnier@iro.umontreal.ca wrote:
shame about usb 1.1 arr well, yee have to make do.
Indeed, looks like a very odd choice. Wonder what's the story behind that one.
Choice is obvious - it's so last-century for a USB2 to be *only* host *or* device, because the latest USB2 standard supports dynamic role switching, commonly known as OTG. That's exactly what JZ4775 has. As for "dedicated 1.1 host" story, it's surely to help lazy bastards for whom USB 2.0 is too complicated to write (steal) drivers.
The chip is cute though, and people have been wearing it on wrists for as long as Gear crap: http://en.smartdevice.com.cn/Products/Z-Watch/201309/26-238.html . I doubt FSF would endorse Ingenic business model much though, like this announcement [1] hints ("Since they will only provide source code to “customers”..."). One can of course go and dig in http://www.ingenic.cn/en/en/download.php?pid=857&fid=795 to see if there's actually source, not blob, drivers for their 2d accel and video decoder.
i've been keeping an eye on them for some time (since they came out with the chip that went into the ben nanonote and the incredible GBP 99 8in laptop back in 2008 what was it... achh it's pretty famous, sold under over 30 different brands... somethingsomething 400... got it! http://en.wikipedia.org/wiki/Skytone_Alpha_400 aaawesome machine)
if i recall correctly the source code tends to make its way onto their ftp server as a matter of course, including the 2d video acceleration. video decoding and any acceleration is done through X-Burst is done *shudder* as some awk scripts that parse standard software libre c source code, converting sections to assembler by hand (!!!) hey if it works... :)
l.