FS_DevDrvAdd()

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Last updated: Jan 05, 2021 by WES Admin
 void  FS_DevDrvAdd (FS_DEV_API  *p_dev_drv,
                     FS_ERR      *p_err);

File

Called from

Code enabled by

fs.c

Application

N/A

Adds a device driver to the file system.

Arguments

p_dev_drv

Pointer to device driver (see Device Driver).

p_err

Pointer to variable that will receive the return error code from this function:

FS_ERR_NONE

Device driver added.

FS_ERR_NULL_PTR

Argument p_dev_drv passed a NULL pointer.

FS_ERR_DEV_DRV_ALREADY_ADDED

Device driver already added.

FS_ERR_DEV_DRV_INVALID_NAME

Device driver name invalid.

FS_ERR_DEV_DRV_NO_TBL_POS_AVAIL

No device driver table position available.

Returned Value

None.

Notes/Warnings

  1. The NameGet() device driver interface function must return a valid name:
  2. The name must be unique (e.g., a name that is not returned by any other device driver);
  3. The name must not include any of the characters: ‘:’, ‘\’ or ‘/’.
  4. The name must contain fewer than FS_CFG_MAX_DEV_DRV_NAME_LEN characters;
  5. The name must not be an empty string.
  6. The Init() device driver interface function is called to initialize driver structures and any hardware for detecting the presence of devices (for a removable medium).