[U-Boot] bootstopkey reason behind it
Stefano Babic
sbabic at denx.de
Fri Aug 2 13:35:04 CEST 2013
On 02/08/2013 07:58, Paavaanan_T_N at Dell.com wrote:
> Hi,
>
> To stop autoboot we have 2 ifdef (CONFIG_AUTOBOOT_STOP_ [STR2 ||
> STR1] ). Which is very easy and straightforward to implement. Halting
> a boot with single "Keystroke" is having its own advantages to the
> user. But, why multiple key support is ignored say like [ctrl +
> anykey ] combination. Especially, BIOS vendors prefer at least
> simultaneous pressing of 2 or more keys to halt the boot. Any
> specific reasons to avoid this. Other than simplicity is there any
> specific reason to stick on this.
>
> I mean why simultaneous two key press support is avoided and
> implemented a secondary bootstopkey to halt the boot say like
> CONFIG_AUTOBOOT_STOP_STR2.
But does not the keyboard send a single key code ? Maybe it is enough
you put in CONFIG_AUTOBOOT_STOP_STR1 the keycode of your CTRL+key.
Best regards,
Stefano Babic
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