1WAITFORDOORBELLACK(9) Message-based devices WAITFORDOORBELLACK(9)
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6 WaitForDoorbellAck - Wait for IOC doorbell handshake acknowledge
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9 int WaitForDoorbellAck(MPT_ADAPTER * ioc, int howlong, int sleepFlag);
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12 ioc
13 Pointer to MPT_ADAPTER structure
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15 howlong
16 How long to wait (in seconds)
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18 sleepFlag
19 Specifies whether the process can sleep
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22 This routine waits (up to ~2 seconds max) for IOC doorbell handshake
23 ACKnowledge, indicated by the IOP_DOORBELL_STATUS bit in its IntStatus
24 register being clear.
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26 Returns a negative value on failure, else wait loop count.
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29Kernel Hackers Manual 2.6. June 2019 WAITFORDOORBELLACK(9)