linux/net/nfc
Mark Greer 4d63adfe12 NFC: Add NFC_CMD_DEACTIVATE_TARGET support
Once an NFC target (i.e., a tag) is found, it remains active until
there is a failure reading or writing it (often caused by the target
moving out of range).  While the target is active, the NFC adapter
and antenna must remain powered.  This wastes power when the target
remains in range but the client application no longer cares whether
it is there or not.

To mitigate this, add a new netlink command that allows userspace
to deactivate an active target.  When issued, this command will cause
the NFC subsystem to act as though the target was moved out of range.
Once the command has been executed, the client application can power
off the NFC adapter to reduce power consumption.

Signed-off-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2017-11-10 00:03:39 +01:00
..
hci NFC: Convert timers to use timer_setup() 2017-11-06 01:12:10 +01:00
nci
Kconfig
Makefile
af_nfc.c
core.c NFC: Convert timers to use timer_setup() 2017-11-06 01:12:10 +01:00
digital.h
digital_core.c NFC: digital: Abort cmd when deactivating target 2017-11-10 00:03:39 +01:00
digital_dep.c
digital_technology.c
llcp.h
llcp_commands.c
llcp_core.c NFC: Convert timers to use timer_setup() 2017-11-06 01:12:10 +01:00
llcp_sock.c
netlink.c NFC: Add NFC_CMD_DEACTIVATE_TARGET support 2017-11-10 00:03:39 +01:00
nfc.h
rawsock.c