centos man page for i2o_msg_get

Query: i2o_msg_get

OS: centos

Section: 9

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

I2O_MSG_GET(9)						       Message-based devices						    I2O_MSG_GET(9)

NAME
i2o_msg_get - obtain an I2O message from the IOP
SYNOPSIS
struct i2o_message * i2o_msg_get(struct i2o_controller * c);
ARGUMENTS
c I2O controller
DESCRIPTION
This function tries to get a message frame. If no message frame is available do not wait until one is available (see also i2o_msg_get_wait). The returned pointer to the message frame is not in I/O memory, it is allocated from a mempool. But because a MFA is allocated from the controller too it is guaranteed that i2o_msg_post will never fail. On a success a pointer to the message frame is returned. If the message queue is empty -EBUSY is returned and if no memory is available -ENOMEM is returned.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 I2O_MSG_GET(9)
Related Man Pages
spi_async_locked(9) - centos
caca_create_frame(3caca) - debian
caca_get_frame_name(3caca) - debian
struct_spi_master(9) - suse
stomp_ack(3) - php
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