rio_get_asm — Begin or continue searching for a RIO device by vid/did/asm_vid/asm_did
struct rio_dev * rio_get_asm ( | u16 vid, |
| u16 did, | |
| u16 asm_vid, | |
| u16 asm_did, | |
struct rio_dev * from); |
vid
RIO vid to match or RIO_ANY_ID to match all vids
did
RIO did to match or RIO_ANY_ID to match all dids
asm_vid
RIO asm_vid to match or RIO_ANY_ID to match all asm_vids
asm_did
RIO asm_did to match or RIO_ANY_ID to match all asm_dids
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 vid, did, asm_vid, asm_did, the reference
count to the device is incrememted and 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. The reference count for from is always decremented if it is
not NULL.