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Added an error type for signalling a MAC-layer collision

This commit is contained in:
adamdunkels 2009-12-05 21:49:51 +00:00
parent e3fed27f4a
commit cef2e65c9b
1 changed files with 14 additions and 1 deletions
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15
core/net/mac/mac.h
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@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: mac.h,v 1.6 2009/11/13 08:59:22 fros4943 Exp $
* $Id: mac.h,v 1.7 2009/12/05 21:49:51 adamdunkels Exp $
*/
/**
@ -70,8 +70,21 @@ struct mac_driver {
/* Generic MAC return values. */
enum {
/**< The MAC layer transmission was OK. */
MAC_TX_OK,
/**< The MAC layer transmission could not be performed due to a
collision. */
MAC_TX_COLLISION,
/**< The MAC layer transmission could not be performed because of an
error. The upper layer may try again later. */
MAC_TX_ERR,
/**< The MAC layer transmission could not be performed because of a
fatal error. The upper layer does not need to try again, as the
error will be fatal then as well. */
MAC_TX_ERR_FATAL,
};
#endif /* __MAC_H__ */