Maxim-integrated 73M1822/73M1922 Hardware Module for SMDK412 Manual do Utilizador descarregar pdf (Página 18)

73M1822/73M1922 Hardware Module for SMDK412 User Guide UG_1x22_054

18 Rev. 1.1

3.6.16 TSC_1X22_MAFE_IRQ_DOWN_TRY

Description

This IOCTL attempts a mutex down_try call on an internal mutex. This IOCTL does not block and always

completes.

Prototype

int ioctl (

int fd,

int TSC_1X22_MAFE_IRQ_DOWN_TRY);

Parameters

Data Type Name Description

int

Channel descriptor.

int

TSC_1X22_MAFE_IRQ_DOWN_TRY

I/O control identifier.

Return Values

Data Type Description

int

Returns 0 upon successfully acquiring the lock, non-zero upon failure.

3.6.17 TSC_1X22_MAFE_IRQ_UP

Description

This IOCTL attempts a mutex up call on an internal mutex. This IOCTL does not block and always

completes.

Prototype

int ioctl (

int fd,

int TSC_1X22_MAFE_IRQ_UP);

Parameters

Data Type Name Description

int

Channel descriptor.

int

TSC_1X22_MAFE_IRQ_UP

I/O control identifier.

Return Values

Data Type Description

int

0 = Success.

-1 = Failure.

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Maxim-integrated 73M1822/73M1922 Hardware Module for SMDK412 Manual do Utilizador Página 18