1UMAD_OPEN_PORT(3)         OpenIB Programmer's Manual         UMAD_OPEN_PORT(3)
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NAME

6       umad_open_port - open InfiniBand device port for umad access
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SYNOPSIS

9       #include <infiniband/umad.h>
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11       int umad_open_port(char *ca_name, int portnum);
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DESCRIPTION

14       umad_open_port()  opens  the  port portnum of the IB device ca_name for
15       umad access. The port is selected by the library if not all  parameters
16       are provided (see umad_get_port() for details).
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RETURN VALUE

19       umad_open_port()  returns  0 or an unique positive value of umad device
20       descriptor on success, and a negative value on error as follows:
21        -EOPNOTSUPP ABI version doesn't match
22        -ENODEV     IB device can't be resolved
23        -EINVAL     port is not valid (bad portnum or no umad device)
24        -EIO        umad device for this port can't be opened
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SEE ALSO

27       umad_close_port(3), umad_get_cas_names(3), umad_get_port(3)
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AUTHOR

30       Hal Rosenstock <halr@voltaire.com>
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34OpenIB                           May 21, 2007                UMAD_OPEN_PORT(3)