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cansend: enhance help text to point out SFF/EFF identifiers 

As suggested by https://github.com/jogo- an example was added that points
out how to send a CAN frame with CAN ID 123 as SFF (11 bit) and EFF (29 bit).

Reference: https://github.com/linux-can/can-utils/issues/126

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
pull/129/head
Oliver Hartkopp 2019-02-14 09:47:46 +01:00
parent 46d620b27c
commit b6cb9a04e5
1 changed files with 2 additions and 2 deletions
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4
cansend.c
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@ -86,8 +86,8 @@ int main(int argc, char **argv)
fprintf(stderr, "<flags> a single ASCII Hex value (0 .. F) which defines"); fprintf(stderr, "<flags> a single ASCII Hex value (0 .. F) which defines");
fprintf(stderr, " canfd_frame.flags\n\n"); fprintf(stderr, " canfd_frame.flags\n\n");
fprintf(stderr, "e.g. 5A1#11.2233.44556677.88 / 123#DEADBEEF / 5AA# / "); fprintf(stderr, "e.g. 5A1#11.2233.44556677.88 / 123#DEADBEEF / 5AA# / ");
fprintf(stderr, "123##1 / 213##311\n 1F334455#1122334455667788 / 123#R "); fprintf(stderr, "123##1 / 213##311223344\n 1F334455#1122334455667788 / ");
fprintf(stderr, "for remote transmission request.\n\n"); fprintf(stderr, "123#R / 00000123#R3\n\n");
return 1; return 1;
} }