DocScrutinizer05 changed the topic of #qi-hardware to: 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 and http://irclog.whitequark.org/qi-hardware
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<apelete> good morning
<apelete> larsc: deactivated the dma completion callback last night to see if dma transfer fares better
<apelete> did some boot time and zcat tests, results look much better -> http://paste.debian.net/106478/
<apelete>
<apelete> larsc: do you think dma can be tweaked further ?
<apelete> thinking about struct dma_slave_config values, I'm not sure about .dst_addr_width and .dst_maxburst
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<larsc> the largest the max burst values the better
<larsc> but they depend on the fifo size of the mmc controller
<apelete> larsc: yes, you told me before, but how do you compute .dst_addr_width and .dst_maxburst from the fifo size of the mmc controller ?
<larsc> dest_addr_width sould be 4
<larsc> and maxburst is in number of samples
<pcercuei> larsc: good evening ;)
<larsc> yea
<apelete> larsc: do you mean I should keep .dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES and try a higher value for .dst_maxburst ?
<larsc> DMA_SLAVE_BUSWIDTH_4_BYTES makes no sense for maxburst
<apelete> ok, so that's what you meant by "maxburst is in number of samples"
<apelete> larsc: I guess I'll have to compute a number of samples myself based on the fifo size of the mmc controller then
<apelete> I'll take a look at other drivers to see how it's done, and work something out from there
<Textmode> how can I check what version of the os I have running on my nanonote?
<apelete> Textmode: if you're looking for kernel version then it's 'uname -a'
<Textmode> apelete: whats the current one, for comparison? I'm getting 2.6.32.10 #1 PREEMPT Tue Jun 15 17:53:33 CEST 2010
<Textmode> (which i'm guessing isn't the latest)
<apelete> Textmode: last known kernel is 3.3.8 -> http://en.qi-hardware.com/wiki/OpenWrt_Software_Image#Image_2012-07-11
<apelete> as you can see there latest actual OS release is Image_2012-10-24
<Textmode> Hmm, not as bad as I expected. but still.
<Textmode> oh well, I guess thats my task for tomorrow.
<apelete> I'm running a 3.12 kernel btw, but I built it myself for development purpose
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<kyak> Textmode: there should also be a /etc/VERSION or something
<kyak> forgot exact name
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<wpwrak> here one can see what to do if your cars starts to go "meow" when in russia. note the safety equipment visible around 04:00
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<astr> what sort of leds do smartphone camera flashes use?
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