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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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ddennedy 2004-11-26 16:30:44 +00:00
parent 3de7e65109
commit 9d07aaadda
1 changed files with 5 additions and 0 deletions
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5
src/main.c
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@ -204,6 +204,11 @@ int raw1394_get_port_info(struct raw1394_handle *handle,
CLEAR_REQ(&req); CLEAR_REQ(&req);
req.type = RAW1394_REQ_LIST_CARDS; req.type = RAW1394_REQ_LIST_CARDS;
req.generation = handle->generation; req.generation = handle->generation;
/* IMPORTANT: raw1394 will be writing directly into the memory you
provide in pinf. The viability of this approach assumes that the
structure of libraw1394's raw1394_portinfo and the kernel's
raw1394_khost_list structs are the same!!
*/
req.recvb = ptr2int(pinf); req.recvb = ptr2int(pinf);
req.length = sizeof(struct raw1394_portinfo) * maxports; req.length = sizeof(struct raw1394_portinfo) * maxports;