1 files changed, 10 insertions, 0 deletions

diff --git a/man/fido_bio_dev_get_info.3 b/man/fido_bio_dev_get_info.3
index bde1396..d18c9ec 100644
--- a/man/fido_bio_dev_get_info.3
+++ b/man/fido_bio_dev_get_info.3
@@ -35,6 +35,8 @@
 The functions described in this page allow biometric
 templates on a FIDO2 authenticator to be listed, created,
 removed, and customised.
+Please note that not all FIDO2 authenticators support biometric
+enrollment.
 For a description of the types involved, please refer to
 .Xr fido_bio_info_new 3 ,
 .Xr fido_bio_enroll_new 3 ,
@@ -118,3 +120,11 @@ is returned.
 .Xr fido_bio_enroll_new 3 ,
 .Xr fido_bio_info_new 3 ,
 .Xr fido_bio_template 3
+.Sh CAVEATS
+Biometric enrollment is a tentative feature of FIDO 2.1.
+Applications willing to strictly abide by FIDO 2.0 should refrain
+from using biometric enrollment.
+Applications using biometric enrollment should ensure it is
+supported by the authenticator prior to using the API.
+Since FIDO 2.1 hasn't been finalised, there is a chance the
+functionality and associated data structures may change.