2009-10-18 13:52:21 +00:00
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README
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^^^^^^
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This directory contains various device drivers -- both block and
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character drivers as well as other more specialized drivers.
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Files in this directory:
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^^^^^^^^^^^^^^^^^^^^^^^
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can.c
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An unfinished CAN driver.
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dev_null.c and dev_zero.c
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These files provide the standard /dev/null and /dev/zero devices.
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See include/nuttx/fs.h for functions that should be called if you
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want to register these devices (devnull_register() and
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devzero_register()).
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loop.c
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Supports the standard loop device that can be used to export a
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file (or character device) as a block device. See losetup() and
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loteardown() in include/nuttx/fs.h.
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ramdisk.c
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Can be used to set up a block of memory or (read-only) FLASH as
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a block driver that can be mounted as a files system. See
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include/nuttx/ramdisk.h.
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Subdirectories of this directory:
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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bch/
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Contains logic that may be used to convert a block driver into
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a character driver. This is the complementary conversion as that
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performed by loop.c. See include/nuttx/fs.h for registration
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information.
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mmcsd/
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Support for MMC/SD block drivers. At present, only SPI-based
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MMC/SD is supported. See include/nuttx/mmcsd.h.
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2009-10-18 17:45:31 +00:00
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mtd/
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Memory Technology Device (MTD) drivers. Some simple drivers for
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memory technologies like FLASH, EEPROM, NVRAM, etc. See
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include/nuttx/mtd.h
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(Note: This is a simple memory interface and should not be
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confused with the "real" MTD developed at infradead.org. This
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logic is unrelated; I just used the name MTD because I am not
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aware of any other common way to refer to this class of devices).
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2009-10-18 13:52:21 +00:00
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net/
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Network interface drivers. See also include/nuttx/net.h
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pipes/
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FIFO and named pipe drivers. Standard interfaces are declared
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in include/unistd.h
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serial/
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Front-ends character drivers for chip-specific UARTs. This provide
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some TTY-like functionality and are commonly used (but not required for)
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the NuttX system console. See include/nuttx/serial.h
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usbdev/
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USB device drivers. See include/nuttx/usb*.h
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