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Enrollment tweaks

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upekts will need to know when the first enrollment stage is attempted for
the first time, so add an __enroll_stage counter which actually indicates
the next stage to enroll. -1 is a special value and it means 0 is next *and*
it is the initial attemt.

Added more debug output to the enroll handler.
Added new fp_enroll_status codes for too short or uncentered scans.

Changed the print_data allocator to consider the device rather than the
driver, this feels more natural. Added missing return value.

Make fp_enroll_status codes start at 1. 0 can now be used as a
special/temporary value by the drivers. Also check that we aren't exceeding
the number of enroll stages.

Also add a missing exit() call to the verify example and update for the
above.
This commit is contained in:
Daniel Drake
2007-10-12 15:27:23 +01:00
committed by Daniel Drake
parent e6624fe508
commit 50e2de0730
5 changed files with 69 additions and 8 deletions
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8
examples/verify.c
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@@ -60,6 +60,13 @@ struct fp_print_data *enroll(struct fp_dev *dev) {
case FP_ENROLL_RETRY:
printf("Didn't quite catch that. Please try again.\n");
break;
case FP_ENROLL_RETRY_TOO_SHORT:
printf("Your swipe was too short, please try again.\n");
break;
case FP_ENROLL_RETRY_CENTER_FINGER:
printf("Didn't catch that, please center your finger on the "
"sensor and try again.\n");
break;
}
} while (status != FP_ENROLL_COMPLETE);
@@ -103,6 +110,7 @@ int main(void)
fp_dscv_devs_free(discovered_devs);
if (!dev) {
fprintf(stderr, "Could not open device.\n");
exit(1);
}
printf("Opened device. It's now time to enroll your finger.\n\n");