arne anka wrote: > hi, > the other day i saw from motorola an adaptor changing a mini-usb into a > 3.5(?)mm headset jack. > http://www.amazon.com/Motorola-3-5mm-Stereo-Audio-Converter/dp/B001A1IKFK/ref=pd_sim_cps_1_img/002-7641246-5084844 > does anybody know whether it works with motorola phones only? afaik yes. means it only works with motorola devices. motorola has 8-13 different 'functions' on the 5pin mini-usb-b connector, including mono headset, stereo headphones out, high and low voltage programming mode, usb-masstorage, usb-acm, serial debugport and some others.
but thats only possible since they build them in such massive volumes that the high initial cost for the custom-asic which contains pmu+codec+usb-py+serial+mux makes any sense at all. besides that, i would like to charge or speak ip to my phone while its playing music, so i do not really favor too much muxing anywhere. 4-ring 3.5mm jack + usb for charging as well as data gives one the biggest number of reasonable use-case combinations while still keeping it simple. after all we do not want bags full of adapters anymore, just because everybody uses a different plug for the same thing. > if not, it easily could solve the issues with audio jack of the freerunner > (whose impact i still fail to understand). sadly not. see above. regards -- Joachim Steiger Openmoko Central Services _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community