twx-linux/include
Andrea Merello 8cb3403633 iio: core: add char type for sysfs attributes
This patch introduces IIO_VAL_CHAR type for standard IIO attributes to
allow for attributes that needs to be represented by character rather
than a number. This is preparatory for introducing a new attribute whose
purpose is to describe thermocouple type, that can be i.e. "J", "K", etc..

The char-type value is stored in the first "value" integer that is passed
to the .[read/write]_raw() callbacks.

Note that in order to make it possible for the IIO core to correctly parse
this type (actually, to avoid integer parsing), it became mandatory for
any driver that wish to use IIO_VAL_CHAR on a writable attribute to
implement .write_raw_get_fmt().

Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Patrick Havelange <patrick.havelange@essensium.com>
Cc: Matt Weber <matthew.weber@rockwellcollins.com>
Cc: Matt Ranostay <matt.ranostay@konsulko.com>
Cc: Chuhong Yuan <hslester96@gmail.com>
Cc: Daniel Gomez <dagmcr@gmail.com>
Cc: linux-iio@vger.kernel.org
Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-23 12:33:07 +00:00
..
acpi cpufreq: Use per-policy frequency QoS 2019-10-21 02:05:21 +02:00
asm-generic timekeeping/vsyscall: Update VDSO data unconditionally 2019-11-04 23:02:53 +01:00
clocksource
crypto Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2019-09-27 19:37:27 -07:00
drm drm/shmem: Add docbook comments for drm_gem_shmem_object madvise fields 2019-11-06 17:57:42 -06:00
dt-bindings First set of IIO new device support, cleanups and features for the 5.5 cycle 2019-10-13 10:59:05 +02:00
keys
kvm
linux iio: core: add char type for sysfs attributes 2019-11-23 12:33:07 +00:00
math-emu
media
misc
net net: fix data-race in neigh_event_send() 2019-11-08 13:59:53 -08:00
pcmcia
ras
rdma RDMA/uverbs: Prevent potential underflow 2019-10-22 15:05:36 -03:00
scsi SCSI fixes on 20191015 2019-10-15 12:19:08 -07:00
soc
sound ASoC: Fixes for v5.4 2019-10-21 14:05:26 +02:00
target
trace for-5.4-rc4-tag 2019-10-23 06:14:29 -04:00
uapi Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-08 18:21:05 -08:00
vdso
video
xen xen: fixes and cleanups for 5.4-rc2 2019-10-04 11:13:09 -07:00
Kbuild - New Drivers 2019-09-23 19:37:49 -07:00