Me too have same question.
devphone seems to have the following two types of implementations.
So far as I understand, Mike Lockwood of Google recommends
the latter type in an earlier mail. It would be better if he confirms.
1. function driver implementation
drivers/usb/function/adb.c
drivers/usb/function/msm_hsusb.c
2. gadget driver implementation
drivers/usb/function/android.c
drivers/usb/function/f_adb.c
drivers/usb/function/msm72k_udc.c
RR
On 7ζ17ζ₯, εεΎ7:28, "Iram Shahzad" <[email protected]> wrote:
> Hi
>
> I am trying to enable ADB through USB on my experimental device.
> I have the following question in this regard.
>
> It seems there are two ways for this.
> 1. support USB gadget driver
> 2. support USB function driver
>
> Which one of the above is recommended?
>
> It seems that devphone uses the No 2. approach.
> But the common kernel at
> git://android.git.kernel.org/kernel/common.git
> does not contain the function driver related codes.
>
> I have tried the No 1. approach. But it looks like
> drivers/usb/gadget/f_adb.c
> has several problems. Has it ever been tested on any device?
>
> Many thanks in advance
> IS
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