You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
px4dev d573cca61b Merge commit '049c93446561c6ad3e59183c139f3916230ddee5' into nuttx-merge-5596 12 years ago
..
analog Manually fixup merge botches via direct comparison with NuttX r5447. 12 years ago
bch A few native window build updates 12 years ago
input Manually fixup merge botches via direct comparison with NuttX r5447. 12 years ago
lcd Add syslog.h; rename lib_rawprintf() to syslog() 12 years ago
mmcsd Additional patches from Petteri Aimonen for FAT, STM32 SPI, and AT25 12 years ago
mtd Additional patches from Petteri Aimonen for FAT, STM32 SPI, and AT25 12 years ago
net Add syslog.h; rename lib_rawprintf() to syslog() 12 years ago
pipes Resync new repository with old repo r5166 13 years ago
power A few native window build updates 12 years ago
sensors A few native window build updates 12 years ago
sercomm Resync new repository with old repo r5166 13 years ago
serial Merge commit '049c93446561c6ad3e59183c139f3916230ddee5' into nuttx-merge-5596 12 years ago
syslog Add syslog.h; rename lib_rawprintf() to syslog() 12 years ago
usbdev Missing calls to class SUSPEND/RESUME methods in all USB drivers 12 years ago
usbhost Add board support at configs/zp214xpa for the The0.net ZP213X/4XPA board with the LPC2148; Add configurations sim/nxlines. convert mcu123-lpc214x/nsh to use the kconfig-frontends. 12 years ago
wireless A few native window build updates 12 years ago
Kconfig apps/examples/nettest and poll: Complete Kconfig files 12 years ago
Makefile Manually fixup merge botches via direct comparison with NuttX r5447. 12 years ago
README.txt Resync new repository with old repo r5166 13 years ago
can.c Resync new repository with old repo r5166 13 years ago
dev_null.c Resync new repository with old repo r5166 13 years ago
dev_zero.c Resync new repository with old repo r5166 13 years ago
loop.c apps/examples/nettest and poll: Complete Kconfig files 12 years ago
pwm.c Resync new repository with old repo r5166 13 years ago
ramdisk.c Resync new repository with old repo r5166 13 years ago
rwbuffer.c Resync new repository with old repo r5166 13 years ago
watchdog.c Resync new repository with old repo r5166 13 years ago

README.txt

README
^^^^^^

This directory contains various device drivers -- both block and
character drivers as well as other more specialized drivers.

Contents:
- Files in this directory
- Subdirectories of this directory
- Skeleton files

Files in this directory
^^^^^^^^^^^^^^^^^^^^^^^

can.c
This is a CAN driver. See include/nuttx/can.h for usage information.

dev_null.c and dev_zero.c
These files provide the standard /dev/null and /dev/zero devices.
See include/nuttx/fs/fs.h for functions that should be called if you
want to register these devices (devnull_register() and
devzero_register()).

loop.c
Supports the standard loop device that can be used to export a
file (or character device) as a block device. See losetup() and
loteardown() in include/nuttx/fs/fs.h.

pwm.c
Provides the "upper half" of a pulse width modulation (PWM) driver.
The "lower half" of the PWM driver is provided by device-specific
logic. See include/nuttx/pwm.h for usage information.

ramdisk.c
Can be used to set up a block of memory or (read-only) FLASH as
a block driver that can be mounted as a files system. See
include/nuttx/ramdisk.h.

ramlog.c
This is a driver that was intended to support debugging output,
aka syslogging, when the normal serial output is not available.
For example, if you are using a telnet or USB serial console,
the debug output will get lost.

This driver is similar to a pipe in that it saves the debugging
output in a FIFO in RAM. It differs from a pipe in numerous
details as needed to support logging.

This driver is built when CONFIG_RAMLOG is defined in the Nuttx
configuration.

rwbuffer.c
A facility that can be use by any block driver in-order to add
writing buffering and read-ahead buffering.

Subdirectories of this directory:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

analog/
This directory holds implementations of analog device drivers.
This includes drivers for Analog to Digital Conversion (ADC) as
well as drivers for Digital to Analog Conversion (DAC).
See include/nuttx/analog/*.h for registration information.

bch/
Contains logic that may be used to convert a block driver into
a character driver. This is the complementary conversion as that
performed by loop.c. See include/nuttx/fs/fs.h for registration
information.

input/
This directory holds implementations of input device drivers.
This includes such things as touchscreen and keypad drivers.
See include/nuttx/input/*.h for registration information.

lcd/
Drivers for parallel and serial LCD and OLED type devices. These
drivers support interfaces as defined in include/nuttx/lcd/lcd.h

mmcsd/
Support for MMC/SD block drivers. MMC/SD block drivers based on
SPI and SDIO/MCI interfaces are supported. See include/nuttx/mmcsd.h
and include/nuttx/sdio.h for further information.

mtd/
Memory Technology Device (MTD) drivers. Some simple drivers for
memory technologies like FLASH, EEPROM, NVRAM, etc. See
include/nuttx/mtd.h

(Note: This is a simple memory interface and should not be
confused with the "real" MTD developed at infradead.org. This
logic is unrelated; I just used the name MTD because I am not
aware of any other common way to refer to this class of devices).

net/
Network interface drivers. See also include/nuttx/net/net.h

pipes/
FIFO and named pipe drivers. Standard interfaces are declared
in include/unistd.h

power/
Power management (PM) driver interfaces. These interfaces are used
to manage power usage of a platform by monitoring driver activity
and by placing drivers into reduce power usage modes when the
drivers are not active.

sensors/
Drivers for various sensors

sercomm/
Sercomm is the transport used by osmocom-bb that runs on top of serial.
See http://bb.osmocom.org/trac/wiki/nuttx-bb/run for detailed the usage
of nuttx with sercomm.

drivers/sercomm is only built if CONFIG_SERCOMM_CONSOLE in the NuttX
configuration file. If you attempt to build this driver without
osmocom-bb, you will get compilation errors because of header files
that are needed from the osmocom-bb.

serial/
Front-end character drivers for chip-specific UARTs. This provide
some TTY-like functionality and are commonly used (but not required for)
the NuttX system console. See also include/nuttx/serial/serial.h

usbdev/
USB device drivers. See also include/nuttx/usb/usbdev.h

usbhost/
USB host drivers. See also include/nuttx/usb/usbhost.h

wireless/
Drivers for various wireless devices.

Skeleton Files
^^^^^^^^^^^^^^

Skeleton files a "empty" frameworks for NuttX drivers. They are provided to
give you a good starting point if you want to create a new NuttX driver.
The following skeleton files are available:

drivers/lcd/skeleton.c -- Skeleton LCD driver
drivers/mtd/skeleton.c -- Skeleton memory technology device drivers
drivers/net/skeleton.c -- Skeleton network/Ethernet drivers
drivers/usbhost/usbhost_skeleton.c -- Skeleton USB host class driver