diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-10-13 09:56:08 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-29 15:47:11 +0800 |
| commit | 781f933c151ee47e3cc1c8ef5491db23f1b61c9a (patch) | |
| tree | 00503549f0cf61908ee7fe60038179c306333976 /drivers/staging/comedi/comedidev.h | |
| parent | bb856b6c041c200910b031b535397e2c805789c5 (diff) | |
staging: comedi: comedidev.h: clarify async->event error/cancel detection
Introduce COMEDI_CB_ERROR_MASK and COMEDI_CB_CANCEL_MASK to clarify the
async->events that indicate errors and cancel an async command.
Use the new defines to tidy up and clarify the code.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/comedidev.h')
| -rw-r--r-- | drivers/staging/comedi/comedidev.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index 0b504b1d3f00..fb8ff84dab35 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -221,6 +221,9 @@ struct comedi_async { * @COMEDI_CB_EOBUF: DEPRECATED: end of buffer * @COMEDI_CB_ERROR: card error during acquisition * @COMEDI_CB_OVERFLOW: buffer overflow/underflow + * + * @COMEDI_CB_ERROR_MASK: events that indicate an error has occurred + * @COMEDI_CB_CANCEL_MASK: events that will cancel an async command */ #define COMEDI_CB_EOS (1 << 0) #define COMEDI_CB_EOA (1 << 1) @@ -229,6 +232,9 @@ struct comedi_async { #define COMEDI_CB_ERROR (1 << 4) #define COMEDI_CB_OVERFLOW (1 << 5) +#define COMEDI_CB_ERROR_MASK (COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW) +#define COMEDI_CB_CANCEL_MASK (COMEDI_CB_EOA | COMEDI_CB_ERROR_MASK) + struct comedi_driver { struct comedi_driver *next; |