Query: di_devfs_minor_path
OS: opensolaris
Section: 3devinfo
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di_devfs_path(3DEVINFO) Device Information Library Functions di_devfs_path(3DEVINFO)NAMEdi_devfs_path, di_devfs_minor_path, di_path_devfs_path, di_path_client_devfs_path, di_devfs_path_free - generate and free path namesSYNOPSIScc [ flag... ] file... -ldevinfo [ library... ] #include <libdevinfo.h> char *di_devfs_path(di_node_t node); char *di_devfs_minor_path(di_minor_t minor); char *di_path_devfs_path(di_path_t path); char *di_path_client_devfs_path(di_path_t path); void di_devfs_path_free(char *path_buf);PARAMETERSnode The handle to a device node in a di_init(3DEVINFO) snapshot. minor The handle to a device minor node in a snapshot. path The handle to a device path node in a snapshot. path_buf A pointer returned by di_devfs_path(), di_devfs_minor_path(), di_path_devfs_path(), or di_path_client_devfs_path().DESCRIPTIONThe di_devfs_path() function generates the physical path of the device node specified by node. The di_devfs_minor_path() function generates the physical path of the device minor node specified by minor. The di_path_devfs_path() function generates the pHCI physical path to the device associated with the specified path node. The returned string is identical to the di_devfs_path() for the device had the device not been supported by multipath. The di_path_client_devfs_path() function generates the vHCI physical path of the multipath client device node associated with the device identity of the specified path node. The returned string is identical to the di_devfs_path() of the multipath client device node. The di_devfs_path_free() function frees memory that was allocated to store the path returned by di_devfs_path(), di_devfs_minor_path(), di_path_devfs_path(), and di_path_client_devfs_path(). The caller is responsible for freeing this memory by calling di_devfs_path_free().RETURN VALUESUpon successful completion, the di_devfs_path(), di_devfs_minor_path(), di_path_devfs_path(), and di_path_client_devfs_path() functions return a pointer to the string containing the path to a device node, a device minor node, or a device path node, respectively. Otherwise, they return NULL and errno is set to indicate the error. For a non-NULL return, the path will not have a "/devices" prefix.ERRORSThe di_devfs_path(), di_devfs_minor_path(), di_path_devfs_path(), and di_path_client_devfs_path() functions will fail if: EINVAL The node, minor, or path argument is not a valid handle. The di_devfs_path(), di_devfs_minor_path(), di_path_devfs_path(), and di_path_client_devfs_path() functions can also return any error value returned by malloc(3C).ATTRIBUTESSee attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+SEE ALSOdi_init(3DEVINFO), libdevinfo(3LIB), malloc(3C), attributes(5) Writing Device Drivers SunOS 5.11 15 May 2008 di_devfs_path(3DEVINFO)