It was found by trial and error testing that at least 11 ms delay is
needed before first I/O, otherwise device will skip given command.
Signed-off-by: Antti Palosaari <cr...@iki.fi>
---
drivers/media/radio/radio-keene.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/radio/radio-keene.c
b/drivers/media/radio/radio-keene.c
index 99da3d4..21db23b 100644
--- a/drivers/media/radio/radio-keene.c
+++ b/drivers/media/radio/radio-keene.c
@@ -382,6 +382,8 @@ static int usb_keene_probe(struct usb_interface *intf,
video_set_drvdata(&radio->vdev, radio);
set_bit(V4L2_FL_USE_FH_PRIO, &radio->vdev.flags);
+ /* at least 11ms is needed in order to settle hardware */
+ msleep(20);
keene_cmd_main(radio, 95.16 * FREQ_MUL, false);
retval = video_register_device(&radio->vdev, VFL_TYPE_RADIO, -1);
--
1.7.11.7
--
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