diff options
Diffstat (limited to 'nuttx/include')
| -rw-r--r-- | nuttx/include/nuttx/can.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/nuttx/include/nuttx/can.h b/nuttx/include/nuttx/can.h index 3f77afc7a..ba060cf5e 100644 --- a/nuttx/include/nuttx/can.h +++ b/nuttx/include/nuttx/can.h @@ -1,7 +1,7 @@ /************************************************************************************ * include/nuttx/can.h * - * Copyright (C) 2008, 2009, 2011 Gregory Nutt. All rights reserved. + * Copyright (C) 2008, 2009, 2011-2012 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -84,6 +84,7 @@ #define dev_ioctl(dev,cmd,arg) dev->cd_ops->co_ioctl(dev,cmd,arg) #define dev_remoterequest(dev,id) dev->cd_ops->co_remoterequest(dev,id) #define dev_send(dev,m) dev->cd_ops->co_send(dev,m) +#define dev_txready(dev) dev->cd_ops->co_txready(dev) #define dev_txempty(dev) dev->cd_ops->co_txempty(dev) /* CAN message support */ @@ -205,6 +206,10 @@ struct can_ops_s CODE int (*co_send)(FAR struct can_dev_s *dev, FAR struct can_msg_s *msg); + /* Return true if the CAN hardware can accept another TX message. */ + + CODE bool (*co_txready)(FAR struct can_dev_s *dev); + /* Return true if all message have been sent. If for example, the CAN * hardware implements FIFOs, then this would mean the transmit FIFO is * empty. This method is called when the driver needs to make sure that |