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Enrollment: improved error reporting

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Convert enrollment function to return a signed integer, which is negative
on error or corresponds into fp_enroll_result otherwise.
Now we can treat a 'FAIL' condition differently from an actual error: fail
means that enrollment didn't complete because the data was nonsense or
whatever (e.g. scanned a different finger for each stage?).

Updated upekts accordingly.
This commit is contained in:
Daniel Drake
2007-10-14 00:45:49 +01:00
committed by Daniel Drake
parent ab5b1ca8e9
commit 39271b4fe5
5 changed files with 62 additions and 36 deletions
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4
libfprint/fp_internal.h
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@@ -96,8 +96,8 @@ struct fp_driver {
/* Device operations */
int (*init)(struct fp_dev *dev);
void (*exit)(struct fp_dev *dev);
enum fp_enroll_status (*enroll)(struct fp_dev *dev, gboolean initial,
int stage, struct fp_print_data **print_data);
int (*enroll)(struct fp_dev *dev, gboolean initial, int stage,
struct fp_print_data **print_data);
};
extern const struct fp_driver upekts_driver;