From: Hendrik Brueckner <[email protected]> The ctrl-o (^O) is a common control key used by several applications like vim.
To allow users to send ^O to the terminal, this patch introduces a check if ^O is pressed again if the sysrq_pressed variable is already set. In this case, clear sysrq_pressed state and flip the ^O character to the tty. (The old behavior has always set "sysrq_pressed" if ^0 has been entered, and it has not flipped the ^O character to the tty.) Signed-off-by: Hendrik Brueckner <[email protected]> --- drivers/char/hvc_console.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -642,8 +642,11 @@ int hvc_poll(struct hvc_struct *hp) /* Handle the SysRq Hack */ /* XXX should support a sequence */ if (buf[i] == '\x0f') { /* ^O */ - sysrq_pressed = 1; - continue; + /* if ^0 is pressed again, reset + * sysrq_pressed and flip ^0 char */ + sysrq_pressed = (sysrq_pressed) ? 0 : 1; + if (sysrq_pressed) + continue; } else if (sysrq_pressed) { handle_sysrq(buf[i], tty); sysrq_pressed = 0; -- Hendrik Brueckner D/3303 Linux on System z Development eMail: [email protected] IBM Deutschland Research & Development GmbH, Schoenaicher Str. 220, 71032 Boeblingen IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Martin Jetter Geschaeftsfuehrung: Erich Baier Sitz der Gesellschaft: Boeblingen Registergericht: Amtsgericht Stuttgart, HRB 243294 _______________________________________________ Linuxppc-dev mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-dev
