V4L/DVB (5037): Pvrusb2: Implement multiple minor device number handling

This is the first patch in preparation of the V4L2/IVTV radio interface.
It does away with the assumption of only one minor per device. It also
adds a file to show the radio minor as well. This can be useful for a
program like pvr-radio.c (when it grows up), since this way it can search
for the minor of the /dev/radioX device it opened and use the video minor
of the same driver instance to get to the actual stream.

The implementation looks kinda ugly. Feel free to improve (that is the
reason behind separate patches anyway).

Signed-off-by: Pantelis Koukousoulas <pakt223@freemail.gr>
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
index 34b08fbcc6ea..4f69431a8f4e 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
@@ -281,9 +281,9 @@ struct pvr2_hdw {
         int unit_number;             /* ID for driver instance */
         unsigned long serial_number; /* ID for hardware itself */
 
-        /* Minor number used by v4l logic (yes, this is a hack, as there should
-           be no v4l junk here).  Probably a better way to do this. */
-        int v4l_minor_number;
+        /* Minor numbers used by v4l logic (yes, this is a hack, as there
+           should be no v4l junk here).  Probably a better way to do this. */
+        int v4l_minor_number[3];
 
         /* Location of eeprom or a negative number if none */
         int eeprom_addr;