"past end of file" condition and return NULL if need be.
For more complicated applications, the private field of the seq_file
-structure can be used. There is also a special value whch can be returned
+structure can be used. There is also a special value which can be returned
by the start() function called SEQ_START_TOKEN; it can be used if you wish
to instruct your show() function (described below) to print a header at the
top of the output. SEQ_START_TOKEN should only be used if the offset is
This structure will be needed to tie our iterator to the /proc file in
a little bit.
-It's worth noting that the interator value returned by start() and
+It's worth noting that the iterator value returned by start() and
manipulated by the other functions is considered to be completely opaque by
the seq_file code. It can thus be anything that is useful in stepping
through the data to be output. Counters can be useful, but it could also be
These helpers will interpret pos as a position within the list and iterate
accordingly. Your start() and next() functions need only invoke the
-seq_list_* helpers with a pointer to the appropriate list_head structure.
+seq_list_* helpers with a pointer to the appropriate list_head structure.
The extra-simple version