For user space to know if a device is up or down.
Signed-off-by: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
---
include/linux/nfc.h | 1 +
net/nfc/netlink.c | 3 +++
2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/include/linux/nfc.h b/include/linux/nfc.h
index b4999ab..39c1fcf 100644
--- a/include/linux/nfc.h
+++ b/include/linux/nfc.h
@@ -107,6 +107,7 @@ enum nfc_attrs {
NFC_ATTR_TARGET_SENSF_RES,
NFC_ATTR_COMM_MODE,
NFC_ATTR_RF_MODE,
+ NFC_ATTR_DEVICE_POWERED,
/* private: internal use only */
__NFC_ATTR_AFTER_LAST
};
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 07f0348..a1388e4 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -48,6 +48,7 @@ static const struct nla_policy nfc_genl_policy[NFC_ATTR_MAX + 1] = {
[NFC_ATTR_PROTOCOLS] = { .type = NLA_U32 },
[NFC_ATTR_COMM_MODE] = { .type = NLA_U8 },
[NFC_ATTR_RF_MODE] = { .type = NLA_U8 },
+ [NFC_ATTR_DEVICE_POWERED] = { .type = NLA_U8 },
};
static int nfc_genl_send_target(struct sk_buff *msg, struct nfc_target *target,
@@ -200,6 +201,7 @@ int nfc_genl_device_added(struct nfc_dev *dev)
NLA_PUT_STRING(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev));
NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols);
+ NLA_PUT_U8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up);
genlmsg_end(msg, hdr);
@@ -261,6 +263,7 @@ static int nfc_genl_send_device(struct sk_buff *msg, struct nfc_dev *dev,
NLA_PUT_STRING(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev));
NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols);
+ NLA_PUT_U8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up);
return genlmsg_end(msg, hdr);
--
1.7.7.3
--
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