X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=Documentation%2Fsound%2Falsa%2FDocBook%2Fwriting-an-alsa-driver.tmpl;h=fae0c98cfdca28e411a8190aaa9eabceda31aefd;hb=9bf4aaab3e101692164d49b7ca357651eb691cb6;hp=934a49a595fbea66f3f4e51ee7e8316140e29038;hpb=db216c3d5e4c040e557a50f8f5d35d5c415e8c1c;p=linux-2.6.git

diff --git a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
index 934a49a59..fae0c98cf 100644
--- a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
+++ b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
@@ -3641,7 +3641,7 @@ struct _snd_pcm_runtime {
 
         <para>
           More precise information can be found in
-        <filename>alsa-kernel/Documentation/sound/alsa/ControlNames.txt</filename>.
+        <filename>Documentation/sound/alsa/ControlNames.txt</filename>.
         </para>
       </section>
     </section>
@@ -5182,7 +5182,7 @@ struct _snd_pcm_runtime {
       The callback is much more complicated than the text-file
       version. You need to use a low-level i/o functions such as
       <function>copy_from/to_user()</function> to transfer the
-      data. Also, you have to keep tracking the file position, too. 
+      data.
 
       <informalexample>
         <programlisting>
@@ -5190,14 +5190,15 @@ struct _snd_pcm_runtime {
   static long my_file_io_read(snd_info_entry_t *entry,
                               void *file_private_data,
                               struct file *file,
-                              char *buf, long count)
+                              char *buf,
+                              unsigned long count,
+                              unsigned long pos)
   {
           long size = count;
-          if (file->f_pos + size > local_max_size)
-                  size = local_max_size - file->f_pos;
-          if (copy_to_user(buf, local_data + file->f_pos, size))
+          if (pos + size > local_max_size)
+                  size = local_max_size - pos;
+          if (copy_to_user(buf, local_data + pos, size))
                   return -EFAULT;
-          file->f_pos += size;
           return size;
   }
 ]]>