diff --git a/GB_get_state_model_from_buffer.md b/GB_get_state_model_from_buffer.md
index d67146d..3656d0d 100644
--- a/GB_get_state_model_from_buffer.md
+++ b/GB_get_state_model_from_buffer.md
@@ -6,8 +6,16 @@ In `save_state.h`
 
 ## Description
 
-TBD
+Retrieves the [[model|GB_model_t]] used by a a save state file stored in `buffer` with size `length`. Populates `model` and returns 0 on success. Returns a positive `EIO` if the buffer is not large enough, and -1 on other failures.
 
 ## Thread Safety
 
 `GB_get_state_model_from_buffer` is thread-safe and can be called from any thread and context.
+
+## Notes
+
+This function also works on save states created by other emulators if they follow the [BESS](https://github.com/LIJI32/SameBoy/blob/master/BESS.md) specification.
+
+## See Also
+
+* [[GB_get_state_model]]
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