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authorMike Isely <isely@pobox.com>2008-04-22 14:45:39 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-04-24 14:07:47 -0300
commitdbc40a0e582a88d2561d13d1fea4f3496bff9650 (patch)
treec914495caa3cf85c6487188ecc05a1aa3acfc0ed /drivers/media/video/pvrusb2/pvrusb2-hdw.c
parentfdf256f3374d5060e3714651b45b8450b7dc4349 (diff)
V4L/DVB (7303): pvrusb2: Ensure that default input selection is actually valid
Previously the pvrusb2 driver just started with the default input to be "television". But if the device doesn't support an analog tuner then this default must be different. New logic here selects a reasonable default based on the actual valid set of available inputs. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-hdw.c')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-hdw.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 94cb0a76e77..ae36948c6c1 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -1875,6 +1875,15 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf,
cptr = hdw->controls + idx;
cptr->info = control_defs+idx;
}
+
+ /* Ensure that default input choice is a valid one. */
+ m = hdw->input_avail_mask;
+ if (m) for (idx = 0; idx < (sizeof(m) << 3); idx++) {
+ if (!((1 << idx) & m)) continue;
+ hdw->input_val = idx;
+ break;
+ }
+
/* Define and configure additional controls from cx2341x module. */
hdw->mpeg_ctrl_info = kzalloc(
sizeof(*(hdw->mpeg_ctrl_info)) * MPEGDEF_COUNT, GFP_KERNEL);