Use OTG as USB (OTG host mode) in LINUX

[bbel...@gmail.com]

 I have a question and I’m desperate, I have about three weeks trying. I’m doing at my university in Spain and I need to use the cubieboard otg port as host to detect and use  a pl2303 usb to serial device in LINUX. When I connect to a standard USB port it detects it with no problems,  as ttyUSB0 port for example, but when I connect it to the OTG port appears to me powered but no signs of life or mounts. I tried everything possible to use the OTG port as another USB. I’m using to connect to the correct mini-a  OTG cable and have tried a thousand things but no way, even reinstalled the system several times. When I do a dmesg or lsusb did not show anything. I’m out of ideas, 

before plug the device:

root@mele:/# lsusb -t
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M

plugin the devide on a normal usb port:

root@mele:/# lsusb -t
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
|__ Port 1: Dev 3, If 0, Class=vend., Driver=pl2303, 12M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M

plugin the device on otg port

root@mele:/# lsusb -t
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M

This is my script.bin

[usbc0]
usb_used = 1
usb_port_type = 0
usb_detect_type = 0
usb_id_gpio =
usb_det_vbus_gpio =
usb_drv_vbus_gpio = port:PB09
usb_host_init_state = 0

[usbc1]
usb_used = 1
usb_port_type = 1
usb_detect_type = 0
usb_id_gpio =
usb_det_vbus_gpio =
usb_drv_vbus_gpio = port:PH06
usb_host_init_state = 1

[usbc2]
usb_used = 1
usb_port_type = 1
usb_detect_type = 0
usb_id_gpio =
usb_det_vbus_gpio =
usb_drv_vbus_gpio = port:PH03
usb_host_init_state = 0

[usb_feature]
vendor_id = 6353
mass_storage_id = 1
adb_id = 2
manufacturer_name = “USB Developer”
product_name = “Android”
serial_number = “20080411″

Thanks in advance

[Roman Mamedov]

On Mon, 8 Apr 2013 04:25:36 -0700 (PDT)
bbel...@gmail.com wrote:

> I have a question and I’m desperate, I have about three weeks trying. I’m
> doing at my university in Spain and I need to use the cubieboard otg port
> as host to detect and use a pl2303 usb to serial device in LINUX. When I
> connect to a standard USB port it detects it with no problems, as ttyUSB0
> port for example, but when I connect it to the OTG port appears to me
> powered but no signs of life or mounts. I tried everything possible to use
> the OTG port as another USB. I’m using to connect to the correct mini-a
> OTG cable and have tried a thousand things but no way, even reinstalled
> the system several times. When I do a dmesg or lsusb did not show anything.
> I’m out of ideas,
>
> before plug the device:
>
> root@mele:/# lsusb -t
> /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
> /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
>
> plugin the devide on a normal usb port:
>
> root@mele:/# lsusb -t
> /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M

> |__* Port 1: Dev 3, If 0, Class=vend., Driver=pl2303, 12M*

> /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
>
> plugin the device on otg port
>
> root@mele:/# lsusb -t
> /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
> /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
>
> This is my script.bin
>
>
> [usbc0]
> usb_used = 1
> usb_port_type = 0

It didn't occur to you to try changing this to 1, so it's like the others?

usb_port_type: USB port type:

type usb port type
0 device only
1 host only
2 OTG

http://linux-sunxi.org/Fex_Guide

--
With respect,
Roman

[Benito Bellido]

Hi again,

I'm still trying, but no success, Could someone give me a idea or any clue?

Best regards

2013/4/8 <bbel...@gmail.com>

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[Craig Hastie]

Has Romans indirect suggestion not worked?
As in changing the value from 0 to either 1 or 2 (I think Roman suggest 1 but you can check his email.
Craig

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