Hi All:
Please help me.
I use DM3730 for mid ,, When I debug the OTG , I found it only can use for device (peripheral). can not be used for HOST
In kernel,
Location: |
| -> Device Drivers |
| -> USB support (USB_SUPPORT [=y]) |
| -> Inventra Highspeed Dual Role Controller (TI, ADI, ...) (USB_MUSB_HDRC [=y])
Driver Mode (<choice> [=y])
CONFIG_USB_MUSB_OTG
In usb phy select ，I select twl4010 for Transceiver Driver
: TWL4030 USB Transceiver Driver
And then I add some log information in twl4030-usb.c: twl4030_usb_irq.;; And other log information in usb-musb.c .
When kernel start:
I plug the usb miniB,, it can work in devices mode..
When Plug usb miniA and link to a mouse,,,it is not work for HOST , ,,in twl4030-usb.c , I know the usb phy detected the usb .( linkstat is USB_LINK_ID), but in musb_core.c,
there have no interrupt ..
if I use only HOST in make menuconfig ,it can work right..for the log information ,,,in musb_core.c ,there have an interrupt..
Use "cat /proc/driver/mudb_hdrc ":
Status: MHDRC, Mode=Peripheral (Power=e0, DevCtl=80)
OTG state:a_idle; inactive
Options: musb-dma, otg (peripheral+host), debug=0 [eps=16]
Peripheral address: 00
Root port status: 00000100
Gadget driver: android_usb
I use "echo "H" > /proc/driver/musb_hdrc" try to change it to HOST ,but it is not ok.
By the way, I use Linux Kernel 2.6.32
Now ,,what could I do for OTG to be HOST ? Thanks!
wade.wang