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New, extended CAN structures must be packed.

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4320 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
2012-01-20 23:15:43 +00:00
parent b179df901e
commit cb1242d496
1 changed files with 4 additions and 3 deletions
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nuttx/include/nuttx/can.h
+4 -3
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@@ -41,6 +41,7 @@
************************************************************************************/ ************************************************************************************/
#include <nuttx/config.h> #include <nuttx/config.h>
#include <nuttx/compiler.h>
#include <sys/types.h> #include <sys/types.h>
#include <stdint.h> #include <stdint.h>
@@ -162,21 +163,21 @@ struct can_hdr_s
uint8_t ch_rtr : 1; /* RTR indication */ uint8_t ch_rtr : 1; /* RTR indication */
uint8_t ch_extid : 1; /* Extended ID indication */ uint8_t ch_extid : 1; /* Extended ID indication */
uint8_t ch_unused : 2; /* Unused */ uint8_t ch_unused : 2; /* Unused */
}; } packed_struct;
#else #else
struct can_hdr_s struct can_hdr_s
{ {
uint16_t ch_dlc : 4; /* 4-bit DLC */ uint16_t ch_dlc : 4; /* 4-bit DLC */
uint16_t ch_rtr : 1; /* RTR indication */ uint16_t ch_rtr : 1; /* RTR indication */
uint16_t ch_id : 11; /* 11-bit standard ID */ uint16_t ch_id : 11; /* 11-bit standard ID */
}; } packed_struct;
#endif #endif
struct can_msg_s struct can_msg_s
{ {
struct can_hdr_s cm_hdr; /* The CAN header */ struct can_hdr_s cm_hdr; /* The CAN header */
uint8_t cm_data[CAN_MAXDATALEN]; /* CAN message data (0-8 byte) */ uint8_t cm_data[CAN_MAXDATALEN]; /* CAN message data (0-8 byte) */
}; } packed_struct;
/* This structure defines a CAN message FIFO. */ /* This structure defines a CAN message FIFO. */