ATA_WAIT_REGISTER(9) libata Library ATA_WAIT_REGISTER(9)NAME
ata_wait_register - wait until register value changes
SYNOPSIS
u32 ata_wait_register(void __iomem * reg, u32 mask, u32 val, unsigned long interval, unsigned long timeout);
ARGUMENTS
reg
IO-mapped register
mask
Mask to apply to read register value
val
Wait condition
interval
polling interval in milliseconds
timeout
timeout in milliseconds
DESCRIPTION
Waiting for some bits of register to change is a common operation for ATA controllers. This function reads 32bit LE IO-mapped register reg
and tests for the following condition.
(*reg & mask) != val
If the condition is met, it returns; otherwise, the process is repeated after interval_msec until timeout.
LOCKING
Kernel thread context (may sleep)
RETURNS
The final register value.
AUTHOR
Jeff Garzik
Author.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 ATA_WAIT_REGISTER(9)
Check Out this Related Man Page
XtAppAddTimeOut(3) XT FUNCTIONS XtAppAddTimeOut(3)NAME
XtAppAddTimeOut, XtRemoveTimeOut - register and remove timeouts
SYNTAX
XtIntervalId XtAppAddTimeOut(XtAppContext app_context, unsigned long interval, XtTimerCallbackProc proc, XtPointer client_data);
void XtRemoveTimeOut(XtIntervalId timer);
ARGUMENTS
app_context
Specifies the application context for which the timer is to be set.
client_data
Specifies the argument that is to be passed to the specified procedure when .
interval Specifies the time interval in milliseconds.
proc Specifies the procedure that is to be called when time expires.
timer Specifies the ID for the timeout request to be destroyed.
DESCRIPTION
The XtAppAddTimeOut function creates a timeout and returns an identifier for it. The timeout value is set to interval. The callback pro-
cedure is called when the time interval elapses, and then the timeout is removed.
The XtRemoveTimeOut function removes the timeout. Note that timeouts are automatically removed once they trigger.
SEE ALSO XtAppAddInput(3),XtAppAddSignal(3)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
X Version 11 libXt 1.1.4 XtAppAddTimeOut(3)
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