[PATCH 1/2] cmd: fastboot: Add keyed abort option

[Mattijs Korpershoek]

Hi Sam,

Thank you for the patch.

On Tue, Jun 02, 2026 at 18:45, Sam Day via B4 Relay <devnull+me.samcday.com at kernel.org> wrote:

> From: Sam Day <me at samcday.com>
>
> Works the same as CONFIG_CMD_UMS_ABORT_KEYED does: any keypress will
> abort fastboot mode (rather than only ctrl-c).
>
> Signed-off-by: Sam Day <me at samcday.com>
> ---
>  cmd/Kconfig    | 6 ++++++
>  cmd/fastboot.c | 9 ++++++++-
>  2 files changed, 14 insertions(+), 1 deletion(-)
>
> diff --git a/cmd/Kconfig b/cmd/Kconfig
> index c71c6824a19..439409d6f2c 100644
> --- a/cmd/Kconfig
> +++ b/cmd/Kconfig
> @@ -1208,6 +1208,12 @@ config CMD_FASTBOOT
>  
>  	  See doc/android/fastboot.rst for more information.
>  
> +config CMD_FASTBOOT_ABORT_KEYED
> +	bool "fastboot abort with any key"
> +	depends on CMD_FASTBOOT && USB_FUNCTION_FASTBOOT
> +	help
> +	  Allow interruption of USB fastboot mode with any key pressed.
> +

It seems that checkpatch is unhappy about this:

$ ./scripts/checkpatch.pl --git master..
-------------------------------------------------------------
Commit 9b68236a90bc ("cmd: fastboot: Add keyed abort option")
-------------------------------------------------------------
WARNING: please write a help paragraph that fully describes the config symbol with at least 2 lines
#26: FILE: cmd/Kconfig:1211:
+config CMD_FASTBOOT_ABORT_KEYED
+       bool "fastboot abort with any key"
+       depends on CMD_FASTBOOT && USB_FUNCTION_FASTBOOT
+       help
+         Allow interruption of USB fastboot mode with any key pressed.
+

total: 0 errors, 1 warnings, 0 checks, 28 lines checked

I'd suggest the following edit:

+         Allow interruption of USB fastboot mode with any key pressed
+         instead of just Ctrl-c.

If you wish, I can do this edit while applying.

With the above change included:

Reviewed-by: Mattijs Korpershoek <mkorpershoek at kernel.org>

>  config CMD_FLASH
>  	bool "flinfo, erase, protect"
>  	default y
> diff --git a/cmd/fastboot.c b/cmd/fastboot.c
> index e71f873527b..f3929f88dfa 100644
> --- a/cmd/fastboot.c
> +++ b/cmd/fastboot.c
> @@ -103,8 +103,15 @@ static int do_fastboot_usb(int argc, char *const argv[],
>  	while (1) {
>  		if (g_dnl_detach())
>  			break;
> -		if (ctrlc())
> +		if (IS_ENABLED(CONFIG_CMD_FASTBOOT_ABORT_KEYED)) {
> +			if (tstc()) {
> +				getchar();
> +				puts("\rOperation aborted.\n");
> +				break;
> +			}
> +		} else if (ctrlc()) {
>  			break;
> +		}
>  		schedule();
>  		dm_usb_gadget_handle_interrupts(udc);
>  	}
>
> -- 
> 2.54.0