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    SubjectRe: [PATCH] serial/documentation: fix name of DCD cpp symbol
    On Wed, 04 Jan 2012 15:13:29 -0800
    Randy Dunlap <rdunlap@xenotime.net> wrote:

    > On 12/02/2011 03:42 PM, Alan Cox wrote:
    > > On Fri, 2 Dec 2011 21:20:11 +0100
    > > Uwe Kleine-König <u.kleine-koenig@pengutronix.de> wrote:
    > >
    > >> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
    > >> ---
    > >> Documentation/serial/driver | 2 +-
    > >> 1 files changed, 1 insertions(+), 1 deletions(-)
    > >>
    > >> diff --git a/Documentation/serial/driver
    > >> b/Documentation/serial/driver index 77ba0af..0a25a91 100644
    > >> --- a/Documentation/serial/driver
    > >> +++ b/Documentation/serial/driver
    > >> @@ -101,7 +101,7 @@ hardware.
    > >> Returns the current state of modem control inputs. The
    > >> state of the outputs should not be returned, since the core keeps
    > >> track of their state. The state information should
    > >> include:
    > >> - - TIOCM_DCD state of DCD signal
    > >> + - TIOCM_CAR state of DCD signal
    > >> - TIOCM_CTS state of CTS signal
    > >> - TIOCM_DSR state of DSR signal
    > >> - TIOCM_RI state of RI signal
    > >
    > > Acked-by: Alan Cox <alan@linux.intel.com>
    > >
    > > but please fix the Subject line to be less confusing - it sounds
    > > like it changes the define not the docs...
    >
    >
    > (sorry for the delayed reply)
    >
    > I thought that DCD meant Data Carrier Detect. Is that old? Has it
    > changed to just Carrier?

    TIOCM_ are the kernel names. The documentation says we use TIOCM_DCD -
    only we don't - the #define is TIOCM_CAR

    So its a fix.
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