Hi Mike,
I have been able to compile kernel 2.6.29 with configuration (USB
function is disabled)--
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_VBUS_DRAW=500
CONFIG_USB_GADGET_SELECTED=y
CONFIG_USB_GADGET_MSM_72K=y
CONFIG_USB_MSM_72K=y
CONFIG_USB_GADGET_DUALSPEED=y
CONFIG_USB_ANDROID=y
I am able to get adb shell.
I also compiled gadgetfs as module and got gadgetfs.ko. I inserted it
in kernel but when I try to mount on it (mount -t gadget path /dev/
gadget) I get error "mount: No such device".
I debugged it and found that it fails in usb_gadget_register_driver()
at point --
if (ui->driver)
return -EBUSY;
I am getting this error because msm72k_udc is busy and held by android
gadget (USB_ANDROID).
I tried to compile CONFIG_USB_ANDROID as module (CONFIG_USB_ANDROID=m)
and modified system/core/rootdir/init.rc to insert g_android.ko
(insmod /system/lib/modules/g_android.ko).
This is not working as I am not able to get adb shell.
Would you please let me know, if it is possible to compile g_android
as module and get inserted in kernel at bootup?
Thanks
Ashutosh
On Jul 13, 4:35 pm, Mike Lockwood <lockw...@android.com> wrote:
> Hi Ashutosh,
>
> I think the problem is that the gadgetsupportis broken in our 2.6.27
> kernel. However, I do know it is working in 2.6.29. I believe if you
> do the following:
>
> - backport the latest drivers/usb/gadget/android.c from 2.6.29 back to 2.6.27
>
> - backport the following commit from 2.6.29 to to 2.6.27:
>
> commit f9335f6d0cfa5b8fc2a10c2a63ebcd42efbf99cb
> Author: Mike Lockwood <lockw...@android.com>
> Date: Fri Feb 20 15:56:06 2009 -0500
>
> [ARM] msm: htc: Clean up USBsupportin trout and sapphire board files
>
> Signed-off-by: Mike Lockwood <lockw...@android.com>
>
> - Finally, configure your kernel with the USB functionsupport
> disabled and the following gadget features enabled:
>
> CONFIG_USB_GADGET=y
> CONFIG_USB_GADGET_VBUS_DRAW=500
> CONFIG_USB_GADGET_SELECTED=y
> CONFIG_USB_GADGET_MSM_72K=y
> CONFIG_USB_MSM_72K=y
> CONFIG_USB_GADGET_DUALSPEED=y
> CONFIG_USB_ANDROID=y
>
> I'm not sure how easy this will be to do the backporting, but it
> should be possible.
>
> Mike
>
>
>
> On Mon, Jul 13, 2009 at 7:02 AM, Ashutosh<as...@techmahindra.com> wrote:
>
> > (especially to Mike Lockwood)
>
> > If I want to havegadgetfssupportat ADP1 and have adb working, how
> > do I need to to configure kernel and compile?
>
> > I have tried many things including using 'CONFIG_USB_ANDROID=y' and
> > 'CONFIG_USB_FUNCTION is not set' but nothing worked. To compile this
> > configuration I had to make some modification in some of the files.
> > List is as below --
>
> > 1) In arch/arm/mach-msm/include/mach/board_htc.h (Reason: Type of
> > t_usb_status_notifier was not visible)
>
> > 58 //#if defined(CONFIG_USB_FUNCTION_MSM_HSUSB)
>
> > 68 //#endif
>
> > 2) In arch/arm/mach-msm/htc_battery.c (Reason: Definition of
> > usb_register_notifier() was not known. Its defintion is in drivers/usb/
> > function/msm_hsusb.c)
>
> > 793 // usb_register_notifier(&usb_status_notifier);
>
> > I am able to boot this image on ADP1 but when I connect it to my PC
> > via USB it reboots.
>
> > On Jul 10, 7:05 pm, Ashutosh <as...@techmahindra.com> wrote:
> >> Hello Everybody,
>
> >> I wanted to putsupportforgadgetfssupporton ADP1.
>
> >> I have downloaded android-1.5r2.
>
> >> My local_manifest.xml is --
>
> >> <?xml version="1.0" encoding="UTF-8"?>
> >> <manifest>
> >> <remove-project name="kernel/common"/>
> >> <project path="kernel" name="kernel/msm" revision="refs/heads/
> >> android-msm-2.6.27"/>
> >> <project path="vendor/htc/dream" name="platform/vendor/htc/dream"
> >> revision="cupcake"/>
> >> <project path="hardware/msm7k" name="platform/hardware/msm7k"
> >> revision="refs/heads/master"/>
> >> </manifest>
>
> >> I have copied arch/arm/configs/msm_defconfig as .config in mydroid/
> >> kernel.
>
> >> I made changes in .config tosupportgadgetfs.
>
> >> As Mike has suggested
> >> athttp://groups.google.com/group/android-platform/browse_thread/thread/...
> >> , I have disabled CONFIG_USB_FUNCTION and enabled CONFIG_USB_GADGET
> >> and CONFIG_USB_GADGET_MSM_72K.
>
> >> After configuring kernel, GADGET and USB_FUNCTION configuration looks
> >> like below --
>
> >> CONFIG_USB_GADGET=y
> >> CONFIG_USB_GADGET_SELECTED=y
> >> CONFIG_USB_GADGET_MSM_72K=y
> >> CONFIG_USB_MSM_72K=y
> >> CONFIG_USB_GADGET_DUALSPEED=y
> >> CONFIG_USB_GADGETFS=y
>
> >> #
> >> # USB FunctionSupport
> >> #
> >> # CONFIG_USB_FUNCTION is not set
>
> >> Now I try to compile kernel and get below error --
>
> >> arch/arm/mach-msm/htc_battery.c:187: error: variable
> >> 'usb_status_notifier' has initializer but incomplete type
> >> arch/arm/mach-msm/htc_battery.c:188: error: unknown field 'name'
> >> specified in initializer
> >> arch/arm/mach-msm/htc_battery.c:188: warning: excess elements in
> >> struct initializer
> >> arch/arm/mach-msm/htc_battery.c:188: warning: (near initialization for
> >> 'usb_status_notifier')
> >> arch/arm/mach-msm/htc_battery.c:189: error: unknown field 'func'
> >> specified in initializer
> >> arch/arm/mach-msm/htc_battery.c:189: warning: excess elements in
> >> struct initializer
> >> arch/arm/mach-msm/htc_battery.c:189: warning: (near initialization for
> >> 'usb_status_notifier')
> >> arch/arm/mach-msm/htc_battery.c: In function 'htc_battery_init':
> >> arch/arm/mach-msm/htc_battery.c:793: error: implicit declaration of
> >> function 'usb_register_notifier'
>
> >> I looked for declaration of t_usb_status_notifier and found it in arch/
> >> arm/mach-msm/include/mach/board_htc.h, but this will be visible only
> >> when CONFIG_USB_FUNCTION_MSM_HSUSB is defined. Since we have disabled
> >> CONFIG_USB_FUNCTION, none of the CONFIG_USB_FUNCTION* are set.
>
> >> I have tried enabling CONFIG_USB_FUNCTION and
> >> CONFIG_USB_FUNCTION_MSM_HSUSB but that gave many multiple definition
> >> error.
>
> >> Please suggest how do I go about it?
>
> >> Thanks
>
> --
> Mike Lockwood
> Google android team
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