[Freesurfer] mri_surf2surf

Hi,

I have a question (I believe about mri_surf2surf). First, I'll describe my goal:

I want to take a surface created with mri_tessellate and modified with mris_smooth and convert it to an isomorphic equally subdivided icosahedron (like mri_watershed creates).

e.g. take the lh.smseghead created by mkheadsurf and resample it:

mri_surf2surf --srcsubject $SUBJECT --srcsurfval $SUBJECTS_DIR/$SUBJECT/surf/lh.smseghead --src_type surf --trgsubject ico --trgsurfval $SUBJECTS_DIR/$SUBJECT/surf/$SUBJECT'_outer_skull' --hemi lh

I get the following error:

ERROR: could not determine type of /imaging/dw01/simulation/subjects/subject_02/surf/lh.smseghead

If this is possible, I want to know how I can correct my command.

Cheers, Dan