termios: Use IMFS nodes for new Termios devices

This makes the new Termios devices independent of device major/minor
numbers.  It enables BSP independent Termios device drivers which may
reside in the cpukit domain.  These drivers require an IMFS and do not
work with the device file system.  However, the device file system
should go away in the future.

1 files changed, 4 insertions, 52 deletions

diff --git a/cpukit/libcsupport/include/rtems/termiostypes.h b/cpukit/libcsupport/include/rtems/termiostypes.h
index 71be95fc06..80251a22d2 100644
--- a/cpukit/libcsupport/include/rtems/termiostypes.h
+++ b/cpukit/libcsupport/include/rtems/termiostypes.h
@@ -344,10 +344,9 @@ typedef struct rtems_termios_tty {
 /**
  * @brief Installs a Termios device.
  *
- * @param[in] device_file If not @c NULL, then a device file for the specified
- *   major and minor number will be created.
- * @param[in] major The device major number of the corresponding device driver.
- * @param[in] minor The device minor number of the corresponding device driver.
+ * The installed Termios device may be removed via unlink().
+ *
+ * @param[in] device_file The device file path.
  * @param[in] handler The device handler.  It must be persistent throughout the
  *   installed time of the device.
  * @param[in] flow The device flow control handler.  The device flow control
@@ -359,65 +358,18 @@ typedef struct rtems_termios_tty {
  * @retval RTEMS_SUCCESSFUL Successful operation.
  * @retval RTEMS_NO_MEMORY Not enough memory to create a device node.
  * @retval RTEMS_UNSATISFIED Creation of the device file failed.
- * @retval RTEMS_RESOURCE_IN_USE There exists a device node for this major and
- *   minor number pair.
  * @retval RTEMS_INCORRECT_STATE Termios is not initialized.
  *
- * @see rtems_termios_device_remove(), rtems_termios_device_open(),
- *   rtems_termios_device_close() and rtems_termios_get_device_context().
+ * @see rtems_termios_get_device_context().
  */
 rtems_status_code rtems_termios_device_install(
   const char                         *device_file,
-  rtems_device_major_number           major,
-  rtems_device_minor_number           minor,
   const rtems_termios_device_handler *handler,
   const rtems_termios_device_flow    *flow,
   rtems_termios_device_context       *context
 );
 
 /**
- * @brief Removes a Termios device.
- *
- * @param[in] device_file If not @c NULL, then the device file to remove.
- * @param[in] major The device major number of the corresponding device driver.
- * @param[in] minor The device minor number of the corresponding device driver.
- *
- * @retval RTEMS_SUCCESSFUL Successful operation.
- * @retval RTEMS_INVALID_ID There is no device installed with this major and
- * minor number pair.
- * @retval RTEMS_RESOURCE_IN_USE This device is currently in use.
- * @retval RTEMS_UNSATISFIED Removal of the device file failed.
- * @retval RTEMS_INCORRECT_STATE Termios is not initialized.
- *
- * @see rtems_termios_device_install().
- */
-rtems_status_code rtems_termios_device_remove(
-  const char                *device_file,
-  rtems_device_major_number  major,
-  rtems_device_minor_number  minor
-);
-
-/**
- * @brief Opens an installed Termios device.
- *
- * @see rtems_termios_device_install().
- */
-rtems_status_code rtems_termios_device_open(
-  rtems_device_major_number  major,
-  rtems_device_minor_number  minor,
-  void                      *arg
-);
-
-/**
- * @brief Closes an installed Termios device.
- *
- * @retval RTEMS_SUCCESSFUL Successful operation.
- *
- * @see rtems_termios_device_install().
- */
-rtems_status_code rtems_termios_device_close(void *arg);
-
-/**
  * @brief Returns the device context of an installed Termios device.
  *
  * @param[in] tty The Termios control.