Other Parts Discussed in Thread: DM3730
Hello,
I have enabled OTG on a customized board based on DM3730 evm. The OTG seems working fine. When I plug in USB cable, adb is enabled. When I unplugged USB cable, adbd is stopped. The USB mass storage device is also detected by linux kernel when I plug it in.
I can see the following message:
[ 194.196594] hub 2-0:1.0: port 1, status 0101, change 0001, 12 Mb/s
[ 194.480957] usb 2-1: new high speed USB device using musb-hdrc and address 5
[ 194.642089] usb 2-1: device v0930 p6545 is not supported
[ 194.647674] usb 2-1: New USB device found, idVendor=0930, idProduct=6545
[ 194.654663] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 194.662139] usb 2-1: Product: DT 101 G2
[ 194.666137] usb 2-1: Manufacturer: Kingston
[ 194.670501] usb 2-1: SerialNumber: 001372995DDDEB50B5180011
[ 194.686737] scsi3 : usb-storage 2-1:1.0
[ 194.696319] hub 2-0:1.0: port 1 enable change, status 00000503
[ 195.784362] scsi 3:0:0:0: Direct-Access Kingston DT 101 G2 PMAP PQ: 0 ANSI: 0 CCS
[ 196.356201] sd 3:0:0:0: [sda] 7669824 512-byte logical blocks: (3.92 GB/3.65 GiB)
[ 196.364929] sd 3:0:0:0: [sda] Write Protect is off
[ 196.369934] sd 3:0:0:0: [sda] Assuming drive cache: write through
[ 196.382598] sd 3:0:0:0: [sda] Assuming drive cache: write through
[ 196.405212] sda: sda1
[ 196.412719] sd 3:0:0:0: [sda] Assuming drive cache: write through
[ 196.419128] sd 3:0:0:0: [sda] Attached SCSI removable disk
I can also manually mount it.
However I have some difficulties in auto-mounting it in Android.
Here is what I did: (following ICS porting guide)
1. In vold.fstab, add:
dev_mount usb /mnt/usb2 auto /devices/platform/musb-omap2430.0/musb-hdrc.0/usb2
2. init.rc is updated as follows
# create mountpoints
mkdir /mnt 0775 root system
mkdir /mnt/sdcard 0000 system system
mkdir /mnt/usb2 0000 system system
...
# Backwards Compat - XXX: Going away in G*
symlink /mnt/sdcard /sdcard
symlink /mnt/usb2 /usb2
mkdir /system
mkdir /data 0771 system system
3. Entry is added to the storage list: overlay/frameworks/base/core/res/res/xml/storage_list.xml
<storage android:mountPoint="/mnt/usb2"
android:storageDescription="@string/storage_usb"
android:removable="true" />
However, the USB mass storage device cannot be auto-mounted.
I can see /sys/devices/platform/musb-omap2430.0/musb-hdrc.0/usb2/2-1/2-1:1.0 folder is getting created
when the USB device is plugged in and getting deleted when it is unplugged. I also used "/sys/devices/platform/musb-omap2430.0/musb-hdrc.0/usb2/2-1/2-1:1.0"
in the vold.fstab but the problem remains.
Does anyone know how to fix this problem?
Thanks,
James
