add comment about assumptions made in raw1394_get_port_info
git-svn-id: svn://svn.linux1394.org/libraw1394/trunk@152 53a565d1-3bb7-0310-b661-cf11e63c67ab
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@ -204,6 +204,11 @@ int raw1394_get_port_info(struct raw1394_handle *handle,
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CLEAR_REQ(&req);
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req.type = RAW1394_REQ_LIST_CARDS;
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req.generation = handle->generation;
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/* IMPORTANT: raw1394 will be writing directly into the memory you
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provide in pinf. The viability of this approach assumes that the
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structure of libraw1394's raw1394_portinfo and the kernel's
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raw1394_khost_list structs are the same!!
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*/
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req.recvb = ptr2int(pinf);
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req.length = sizeof(struct raw1394_portinfo) * maxports;
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