From: "Kevin Hilman" <[EMAIL PROTECTED]> > > You are right! I've tried to transfer a huge file from a > > USB key, and I got > > the sad, sad full-speed T/R of 1.2 MB/s. Actually I've > > just tried with the > > 2.6.10 MV kernel; with the git kernel I wasn't able to > > mount the USB key at > > all, but probably I've missed some options in the > > .config (haven't I?). > > The default config in the git tree defaults to compile as > modules, and > defaults to gadget mode. [...]
No, it was something else, I don't know exactly what. At a certain point I was no longer able to boot the kernel too, it freezed after the uncompression (obviously I've applied your machine number patch); oddly, it seems that the same problem occurred to a couple of persons in the last few days. I wonder if the EVM is sensitive to ionospheric disturbances or solar eruptions; in the past I've had some very funny malfunctions with older EVM coming from Spectrum Digital. ;-) Anyway, now it works, but it still sucks. I get a transfer rate of about 1.9 MB/s - which is even worse than 1.2 MB/s, because it means that USB high-speed is active. Moreover, during the transfer the system is practically hogged (99.9% of the time spent in rpciod and cp). Unchecking the "disable DMA" box in the configuration makes it only worse; SPRUE35 states that DaVinci USB controller supports DMA, I'll try to look into that. With the same USB key I got a T/R of 18 MB/s under the Linux PC workstation. Can someone make a test with a USB key and tell me if this is a problem of mine or it's just the actual "state of the art"? Cheers, Lorenzo _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
