SND_CTL_SYNC_VMASTER(9) Control/Mixer API SND_CTL_SYNC_VMASTER(9)NAME
snd_ctl_sync_vmaster - Sync the vmaster slaves and hook
SYNOPSIS
void snd_ctl_sync_vmaster(struct snd_kcontrol * kcontrol, bool hook_only);
ARGUMENTS
kcontrol
vmaster kctl element
hook_only
sync only the hook
DESCRIPTION
Forcibly call the put callback of each slave and call the hook function to synchronize with the current value of the given vmaster element.
NOP when NULL is passed to kcontrol.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SND_CTL_SYNC_VMASTER(9)
Check Out this Related Man Page
net_hook_register(9F) Kernel Functions for Drivers net_hook_register(9F)NAME
net_hook_register - add a hook to be called in event processing
SYNOPSIS
#include <sys/neti.h>
net_hook_t net_hook_register(const net_data_t net, hook_t *hook);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
PARAMETERS
net value returned from a successful call to net_protocol_register().
hook pointer to a hook_t structure.
DESCRIPTION
The net_hook_register() function uses hooks that allow callbacks to be registered with events that belong to a network protocol. A success-
ful call to net_hook_register() requires that a valid handle for a network protocol be provided (the net parameter), along with a hook
description that includes a reference to an available event.
While it is possible to use the same hook_t structure with multiple calls to net_hook_register(), it is not encouraged.
The hook_t structure passed in with this function is described by hook_t(9S). The following describes how this structure is used.
h_func Must be non-NULL and represent a function that fits the specified interface.
h_name Gives the hook a name that represents its owner. No duplication of h_name among the hooks present for an event is
allowed.
h_flags Currently unused and must be set to 0.
h_hint, h_hintvalue Specify a hint to net_hook_register() on how to insert this hook. If the hint cannot be specified, then an error is
returned.
h_arg; May take any value that the consumer wishes to have passed back when the hook is activated.
RETURN VALUES
If the net_hook_register() function succeeds, 0 is returned. Otherwise, one of the following errors is returned:
ENOMEM The system cannot allocate any more memory to support registering this hook.
ENXIO A hook cannot be found among the given family of events.
EEXIST A hook with the given h_name already exists on that event.
ESRCH A before or after dependency cannot be satisfied due to the hook with
EBUSY The h_hint field specifies a hint that cannot currently be satisfied because it conflicts with another hook. An example of this
might be specifying HH_FIRST or HH_LAST when another hook has already been registered with this value.
CONTEXT
The net_hook_register() function may be called from user or kernel context.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|Interface Stability |Committed |
+-----------------------------+-----------------------------+
SEE ALSO net_hook_unregister(9F), hook_t(9S)SunOS 5.11 1 May 2008 net_hook_register(9F)
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