rio_get_comptag — Begin or continue searching for a RIO device by component tag
struct rio_dev * rio_get_comptag ( | u32 comp_tag, |
struct rio_dev * from) ; |
comp_tag
RIO component tag to match
from
Previous RIO device found in search, or NULL
for new search
Iterates through the list of known RIO devices. If a RIO device is
found with a matching comp_tag
, a pointer to its device
structure is returned. Otherwise, NULL
is returned. A new search
is initiated by passing NULL
to the from
argument. Otherwise, if
from
is not NULL
, searches continue from next device on the global
list.