diff options
| author | Kevin Redon <kevredon@mail.tsaitgaist.info> | 2012-09-11 11:54:52 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2014-10-26 19:09:23 +0100 |
| commit | 1707306da59a53c8ce72952fc5e41b999e36b73c (patch) | |
| tree | c369fcc330137f90dac4666380c5c7f1bff48ad9 /include/osmocom/sim | |
| parent | 5985760a61591af16c2bd424881e9f15cd67e820 (diff) | |
sim: add comment/explaination for structure osim_apdu_cmd_hdr
Diffstat (limited to 'include/osmocom/sim')
| -rw-r--r-- | include/osmocom/sim/sim.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/include/osmocom/sim/sim.h b/include/osmocom/sim/sim.h index 32731939..12f0074d 100644 --- a/include/osmocom/sim/sim.h +++ b/include/osmocom/sim/sim.h @@ -17,12 +17,13 @@ enum osim_apdu_case { APDU_CASE_4E /* command header, command data field (extended), response data field (extended) */ }; +/* command header, as specified in ISO/IEC 7816-3:2006(E) ยง12.2 */ struct osim_apdu_cmd_hdr { - uint8_t cla; - uint8_t ins; - uint8_t p1; - uint8_t p2; - uint8_t p3; + uint8_t cla; /* CLASS byte */ + uint8_t ins; /* INSTRUCTION byte */ + uint8_t p1; /* Parameter 1 byte */ + uint8_t p2; /* Parameter 2 byte */ + uint8_t p3; /* Parameter 3 byte, used for TPDU */ } __attribute__ ((packed)); #define msgb_apdu_dr(__x) |