[media] em28xx: Reworked probe code to get rid of some hacks

Reworked device probing to get rid of hacks to guess the maximum size of
dvb iso transfer packets. The new code also selects the first alternate
config which supports the largest possible iso transfers for dvb.

[mchehab@redhat.com: Fix a few checkpatch.pl CodingStyle compliants]
Signed-off-by: Holger Nelson <hnelson@hnelson.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/media/video/em28xx/em28xx-reg.h b/drivers/media/video/em28xx/em28xx-reg.h
index 66f792361b97..2f6268505726 100644
--- a/drivers/media/video/em28xx/em28xx-reg.h
+++ b/drivers/media/video/em28xx/em28xx-reg.h
@@ -12,6 +12,11 @@
 #define EM_GPO_2   (1 << 2)
 #define EM_GPO_3   (1 << 3)
 
+/* em28xx endpoints */
+#define EM28XX_EP_ANALOG        0x82
+#define EM28XX_EP_AUDIO         0x83
+#define EM28XX_EP_DIGITAL       0x84
+
 /* em2800 registers */
 #define EM2800_R08_AUDIOSRC 0x08