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[media] cec: add CEC_MSG_FL_REPLY_TO_FOLLOWERS

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Give the caller more control over how replies to a transmit are
handled. By default the reply will only go to the filehandle that
called CEC_TRANSMIT. If this new flag is set, then the reply will
also go to all followers.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Hans Verkuil
2016-11-01 08:55:05 -02:00
committed by Mauro Carvalho Chehab
parent f4062625ed
commit adc0c62278
5 changed files with 29 additions and 9 deletions
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5
include/linux/cec.h
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@@ -175,7 +175,10 @@ static inline void cec_msg_set_reply_to(struct cec_msg *msg,
msg->reply = msg->timeout = 0;
}
/* cec status field */
/* cec_msg flags field */
#define CEC_MSG_FL_REPLY_TO_FOLLOWERS (1 << 0)
/* cec_msg tx/rx_status field */
#define CEC_TX_STATUS_OK (1 << 0)
#define CEC_TX_STATUS_ARB_LOST (1 << 1)
#define CEC_TX_STATUS_NACK (1 << 2)