Fix from Tito to read from stdin only when it's not a tty.
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@ -994,7 +994,7 @@ USE_FEATURE_DATE_ISOFMT( \
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#define hdparm_trivial_usage \
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"[options] [device] .."
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#define hdparm_full_usage \
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USE_FEATURE_HDPARM_GET_IDENTITY("\tIf no device name is specified read from stdin.\n") \
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USE_FEATURE_HDPARM_GET_IDENTITY("\tIf no device name is specified try to read from stdin.\n") \
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"\nOptions:\n" \
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"\t-a get/set fs readahead\n" \
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"\t-A set drive read-lookahead flag (0/1)\n" \
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@ -2185,11 +2185,11 @@ int hdparm_main(int argc, char **argv)
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argc -= optind;
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argv += optind;
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#if ENABLE_FEATURE_HDPARM_GET_IDENTITY
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if (argc < 1) {
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identify_from_stdin(); /* EXIT */
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if (ENABLE_FEATURE_HDPARM_GET_IDENTITY && !isatty(STDIN_FILENO))
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identify_from_stdin(); /* EXIT */
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else bb_show_usage();
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}
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#endif
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while (argc--) {
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process_dev(*argv);
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