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New, extended CAN structures must be packed.

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4320 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-01-20 23:15:43 +00:00
parent ce5f4e643e
commit e2faa15666
1 changed files with 4 additions and 3 deletions
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7
include/nuttx/can.h
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@ -41,6 +41,7 @@
************************************************************************************/
#include <nuttx/config.h>
#include <nuttx/compiler.h>
#include <sys/types.h>
#include <stdint.h>
@ -162,21 +163,21 @@ struct can_hdr_s
uint8_t ch_rtr : 1; /* RTR indication */
uint8_t ch_extid : 1; /* Extended ID indication */
uint8_t ch_unused : 2; /* Unused */
};
} packed_struct;
#else
struct can_hdr_s
{
uint16_t ch_dlc : 4; /* 4-bit DLC */
uint16_t ch_rtr : 1; /* RTR indication */
uint16_t ch_id : 11; /* 11-bit standard ID */
};
} packed_struct;
#endif
struct can_msg_s
{
struct can_hdr_s cm_hdr; /* The CAN header */
uint8_t cm_data[CAN_MAXDATALEN]; /* CAN message data (0-8 byte) */
};
} packed_struct;
/* This structure defines a CAN message FIFO. */