For those who can't solder maybe this would work too http://www.amazon.com/USB-Type-Female-Coupler-Adapter/dp/B000I97N0S
I will give one a try. Timo Juhani Lindfors wrote: > I tried this "USB gender changer" and the voltage levels seem to go > just about right: > > normal pc usb port > ================== > > black GND > green 0V > white 0V > red +5V > > freerunner as device > ==================== > > black GND > green 0V > white 0V > red 0V > > freerunner as host > ================== > > black GND > green 0V > white 0V > red +4.98V > > However, usb devices don't seem to work. Even the simplest USB > extension cable with LED does not turn its LED on. Any idea how I > should debug this further? I am using > > echo "host" > /sys/devices/platform/s3c2410-ohci/usb_mode > echo "1" > /sys/devices/platform/neo1973-pm-host.0/hostmode > > from http://wiki.openmoko.org/wiki/Neo_1973_USB_host to turn host mode > on and the following rootfs and kernel: > > http://buildhost.openmoko.org/daily/freerunner/200807/20080722/Openmoko-openmoko-devel-image-glibc-ipk-P1-Snapshot-20080722-om-gta02.rootfs.jffs2 > > http://buildhost.openmoko.org/daily/freerunner/200807/20080730/uImage-2.6.24+git25+8533927964761f4e2078ccd8607b90f5acc60b93-r1 > -om-gta02.bin > > Maybe the ID pin in the openmoko usb cable somehow causes trouble? > > _______________________________________________ > Openmoko community mailing list > [email protected] > http://lists.openmoko.org/mailman/listinfo/community > -- Jim Morris, http://blog.wolfman.com _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
