Showing posts with label usb otg. Show all posts
Showing posts with label usb otg. Show all posts

1/03/2012

USB 1.x/2.0 standard pinout


USB 1.x/2.0 standard pinout
Pin Name Cable color Description
1 VBUS Red +5 V
2 D− White Data −
3 D+ Green Data +
4 GND Black Ground
USB 1.x/2.0 Mini/Micro pinout
Pin Name Cable color Description
1 VBUS Red +5 V
2 D− White Data −
3 D+ Green Data +
4 ID None Permits distinction of A plug from B plug
* A plug: connected to Signal ground
* B plug: not connected
5 GND Black Signal ground

12/30/2011

How to mount the USB disk storage decies in android device

in device/qcom/msm7627_7x_surf/vold.fstab
change:
dev_mount sdcard /mnt/sdcard auto /devices/platform/msm_sdcc.1/mmc_host
to
dev_mount sdcard /mnt/sdcard auto /devices/platform/msm_hsusb_host.0/usb1