On Wed, Dec 2, 2009 at 4:50 AM, YES NOPE9 wrote: > My Blackberry 9530 Storm ( which is the worst cell phone I have ever > owned ) will charge it's battery via the USB port when I use a > Kensington power adapter which has a USB port. =A0The BB will also > charge with it's supplied USB charger. > > I built my own USB power adapter which supplies =A05V to the correct > pins. =A0The Blackberry does not charge. =A0The only difference I can > imagine is that the data + and - lines make some difference. =A0My > adapter leaves these lines unconnected. =A0I don't know what the > Kensington does. =A0I have measured the 5V and it looks okay when loaded. > You need a driver on the PC so that the Blackberry can be put in a valid USB configuration to get 500mA. Therefore the D+ and D- are used to communicate with the PC. A mini driver for Linux: http://www.linuxhq.com/kernel/v2.6/21/drivers/usb/misc/berry_charge.c For Windows, use the official package or the following driver only package: http://blackberry-report.com/enable-charging-with-usb-driver-for-blackberry/ Some other tricks: http://www.blackberryforums.com.au/forums/blackberry-general-discussion/140= 1-cracked-usb-charging-no-drivers.html -- = Xiaofan http://mcuee.blogspot.com -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist