Since the ADS1115 has a relative slow conversion rate, this additional
ioctl command makes it possible to trigger a conversion before reading
the reading the conversion result, allowing the user to perform other
computation in between instead of waiting for the conversion time to
complete. It improves sampling time.
Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
The MCP47X6 series consists of the following single channel DAC chips:
- MCP4706 (8 bit)
- MCP4716 (10 bit)
- MCP4726 (12 bit)
The driver supports the following configurations:
- gain
- power down
- voltage reference
Persistent configuration storage in the internal EEPROM is not
implemented.
This patch adds initial support for the Texas Instruments ADS1115 ADC.
Please read the documentation for more details.
Signed-off-by: Tony Lin <99093620+justapotato213@users.noreply.github.com>
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
1.Don't check the return value of nxsem_init or nxmutex_init
2.Fix some style issue
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit adds two new IOCTL commnands for ADC driver. Command
ANIOC_RESET_FIFO resets FIFO head and tail which causes the driver
to wait for the new data to be received. Calling this command before
reading ADC data in user space ensures that the read data are newly
sampled.
Command ANIOC_SAMPLES_ON_READ return the number of read channels in
the buffer. This can be useful in nonblocking mode when the application
needs to get the samples received before the app was started.
Both IOCTL commands are used only in generic driver section only and do
not have any effect on existing architecture specific drivers.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Number of configured ADC channels is currently only defined in board
level section, typically in xxx_adc.c file. This commit introduces
ioctl command ANIOC_GET_NCHANNELS that returns the number of configured
channels which is determined by the driver code. The change can allow the
applications to be more flexible when it comes to multiple ADC devices
with different number of configured channels.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
* port didn't know about data-register fifo
* port didn't handle overrun condition
* driver could get stuck if interrupts were skipped due to saturation
DS Automotion GmbH has submitted the SGA and we can migrate the licenses
to Apache.
Gregory Nutt has submitted the SGA and we can migrate the licenses
to Apache.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Mateusz Tomasz Szafoni has submitted the ICLA and we can migrate the licenses
to Apache.
Gregory Nutt has submitted the SGA and we can migrate the licenses
to Apache.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Abdelatif Guettouche has submitted the ICLA and we can migrate the licenses
to Apache.
Gregory Nutt has submitted the SGA and we can migrate the licenses
to Apache.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
MAX11612: 4 channels VCC=5V0 Int VRef=4.096V
MAX11613: 4 channels VCC=3V3 Int VRef=2.048V
MAX11614: 8 channels VCC=5V0 Int VRef=4.096V
MAX11615: 8 channels VCC=3V3 Int VRef=2.048V
MAX11616: 12 channels VCC=5V0 Int VRef=4.096V
MAX11617: 12 channels VCC=3V3 Int VRef=2.048V
Note: The chips' auto-scanning feature is not supported in this revision.
arch/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
sched/ audio/ crypto/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
Documentation/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
fs/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
graphics/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
net/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
drivers/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
include/, syscall/, wireless/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
configs/: Remove all references to CONFIG_DISABLE_POLL. Standard POSIX poll can no longer be disabled.
STM32L4: ADC, Kconfig small changes
* STM32L4 ADC: port analog watchdog ioctls from the Motorola MDK
* STM32L4: Kconfig: add some L486 and L496 chips, remove duplicates
Approved-by: Gregory Nutt <gnutt@nuttx.org>
