Opens a communications I/O device handler.
#include <sys/types.h>
#include <sys/errno.h>
#include <aixif/net_if.h>
#include <sys/comio.h>int net_attach (kopen_ext, device_req, netid, netfpp)
struct kopen_ext * kopen_ext;
struct device_req * device_req;
struct netid_list * netid;
struct file ** netfpp;
| Item | Description |
|---|---|
| kopen_ext | Specifies the device handler kernel open extension. |
| device_req | Indicates the address of the device description structure. |
| netid | Indicates the address of the network ID list. |
| netfpp | Specifies the address of the variable that will hold the returned file pointer. |
The net_attach kernel service opens the device handler specified by the device_req parameter and then starts all the network IDs listed in the address specified by the netid parameter. The net_attach service then sleeps and waits for the asynchronous start completion notifications from the net_start_done kernel service.
The net_attach kernel service can be called from the process environment only.
Upon success, a value of 0 is returned and a file pointer is stored in the address specified by the netfpp parameter. Upon failure, the net_attach service returns either the error codes received from the fp_opendev or fp_ioctl kernel service, or the value ETIMEDOUT. The latter value is returned when an open operation times out.