1*19c3b8c2SApple OSS Distributions<h2>device_reply_server</h2> 2*19c3b8c2SApple OSS Distributions<hr> 3*19c3b8c2SApple OSS Distributions<p> 4*19c3b8c2SApple OSS Distributions<strong>Function</strong> - Handle incoming data from kernel device driver. 5*19c3b8c2SApple OSS Distributions<h3>SYNOPSIS</h3> 6*19c3b8c2SApple OSS Distributions<pre> 7*19c3b8c2SApple OSS Distributions<strong>boolean_t device_reply_server</strong> 8*19c3b8c2SApple OSS Distributions <strong>(mach_msg_header_t</strong> <var>request_msg</var>, 9*19c3b8c2SApple OSS Distributions <strong>mach_msg_header_t</strong> <var>reply_msg</var><strong>);</strong> 10*19c3b8c2SApple OSS Distributions</pre> 11*19c3b8c2SApple OSS Distributions<h3>PARAMETERS</h3> 12*19c3b8c2SApple OSS Distributions<dl> 13*19c3b8c2SApple OSS Distributions<p> 14*19c3b8c2SApple OSS Distributions<dt> <var>request_msg</var> 15*19c3b8c2SApple OSS Distributions<dd> 16*19c3b8c2SApple OSS Distributions[pointer to in structure] 17*19c3b8c2SApple OSS DistributionsThe device driver message received from the 18*19c3b8c2SApple OSS Distributionskernel. 19*19c3b8c2SApple OSS Distributions<p> 20*19c3b8c2SApple OSS Distributions<dt> <var>reply_msg</var> 21*19c3b8c2SApple OSS Distributions<dd> 22*19c3b8c2SApple OSS Distributions[out structure] 23*19c3b8c2SApple OSS DistributionsA reply message. No messages from a device driver 24*19c3b8c2SApple OSS Distributionsexpect a direct reply, so this field is not used. 25*19c3b8c2SApple OSS Distributions</dl> 26*19c3b8c2SApple OSS Distributions<h3>DESCRIPTION</h3> 27*19c3b8c2SApple OSS Distributions<p> 28*19c3b8c2SApple OSS DistributionsThe <strong>device_reply_server</strong> function is the MIG generated server handling 29*19c3b8c2SApple OSS Distributionsfunction to handle messages from kernel device drivers. Such 30*19c3b8c2SApple OSS Distributionsmessages were sent in response to the various 31*19c3b8c2SApple OSS Distributions<strong>device_</strong>...<strong>_request</strong>... 32*19c3b8c2SApple OSS Distributionscalls. It is assumed when using 33*19c3b8c2SApple OSS Distributionsthose calls that some task is listening for reply messages on the port named as a 34*19c3b8c2SApple OSS Distributionsreply port to those calls. The <strong>device_reply_server</strong> 35*19c3b8c2SApple OSS Distributionsfunction performs all 36*19c3b8c2SApple OSS Distributionsnecessary argument handling for a kernel message and calls one 37*19c3b8c2SApple OSS Distributionsof the device server functions to interpret the message. 38*19c3b8c2SApple OSS Distributions<h3>RETURN VALUES</h3> 39*19c3b8c2SApple OSS Distributions<dl> 40*19c3b8c2SApple OSS Distributions<p> 41*19c3b8c2SApple OSS Distributions<dt> <strong>TRUE</strong> 42*19c3b8c2SApple OSS Distributions<dd> 43*19c3b8c2SApple OSS DistributionsThe message was handled and the appropriate function was called. 44*19c3b8c2SApple OSS Distributions<p> 45*19c3b8c2SApple OSS Distributions<dt> <strong>FALSE</strong> 46*19c3b8c2SApple OSS Distributions<dd> 47*19c3b8c2SApple OSS DistributionsThe message did not apply to this device handler interface and no other 48*19c3b8c2SApple OSS Distributionsaction was taken. 49*19c3b8c2SApple OSS Distributions</dl> 50*19c3b8c2SApple OSS Distributions<h3>RELATED INFORMATION</h3> 51*19c3b8c2SApple OSS Distributions<p> 52*19c3b8c2SApple OSS DistributionsFunctions: 53*19c3b8c2SApple OSS Distributions<a href="device_open.html"><strong>ds_device_open_reply<strong></a>, 54*19c3b8c2SApple OSS Distributions<a href="device_write.html"><strong>ds_device_write_reply<strong></a>, 55*19c3b8c2SApple OSS Distributions<a href="device_write_inband.html"><strong>ds_device_write_reply_inband<strong></a>, 56*19c3b8c2SApple OSS Distributions<a href="device_read.html"><strong>ds_device_read_reply<strong></a>, 57*19c3b8c2SApple OSS Distributions<a href="device_read_inband.html"><strong>ds_device_read_reply_inband<strong></a>, 58*19c3b8c2SApple OSS Distributions<a href="device_read_overwrite.html"><strong>ds_device_read_reply_overwrite<strong></a>. 59