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yaml --- r: 131585 b: refs/heads/master c: 01b24fe h: refs/heads/master i: 131583: 6e8b1d1 v: v3
git-mirror · Feb 21, 2009 · f750da0 · f750da0
1 parent 5641c78
commit f750da0
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Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f6fcba7014f9cc535fa75ef98c008b24e49e2212
+refs/heads/master: 01b24fee285b098c74318a8be801ef3711ec18d7
diff --git a/trunk/include/linux/spi/spi_bitbang.h b/trunk/include/linux/spi/spi_bitbang.h
@@ -83,6 +83,13 @@ extern int spi_bitbang_stop(struct spi_bitbang *spi);
  *  int getmiso(struct spi_device *);
  *  void spidelay(unsigned);
  *
+ * setsck()'s is_on parameter is a zero/nonzero boolean.
+ *
+ * setmosi()'s is_on parameter is a zero/nonzero boolean.
+ *
+ * getmiso() is required to return 0 or 1 only. Any other value is invalid
+ * and will result in improper operation.
+ *
  * A non-inlined routine would call bitbang_txrx_*() routines.  The
  * main loop could easily compile down to a handful of instructions,
  * especially if the delay is a NOP (to run at peak speed).