Re: [U-Boot] ctrl-c detection (on 4xx platforms)

12 Sep 2008


      Dear Matthias Fuchs,
In message 200809120955.10866.matthias.fuchs@esd-electronics.com you wrote:
...
when I disable CONFIG_AUTOBOOT_KEYED ctrl-c checking is not disabled.
I think there is one "dis" ot "not" too many.
...
We are using CONFIG_AUTOBOOT_KEYED to have a special key (SPACE) to
abort autoboot and not the 'any' key.
I thought so.
...
Is there any special reason why ctrl-c checking is disabled for CONFIG_AUTOBOOT_KEYED?
Excellent question. Next question, please.
I think the rationale behind this is to prevent users from getting an
interactive  prompt  by  just  pressing  ^C  -   the   intention   of
CONFIG_AUTOBOOT_KEYED  is  similar to a login with password - without
the correct password you are denied access to an  interactive  inter-
face.
But if you could use ^C as soon as the bootcmd  has  started  -  what
should  happen  next?  We cannot simply drop you into the interactive
shell?
Best regards,
Wolfgang Denk
-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
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