pm_vt_switch

Name:There are three cases when a VT switch on suspend/resume are required:* 1) no driver has indicated a requirement one way or another, so preserve* the old behavior* 2) console suspend is disabled, we want to see debug messages across* suspend/resume* 3)

Proto:static bool pm_vt_switch(void)

Type:bool

Parameter:Nothing

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bool ret = true

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mutex_lock( & vt_switch_mutex)

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If list_empty - tests whether a list is empty*@head: the list to test. Then Go to out

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If Not console_suspend_enabled Then Go to out

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If required Then Go to out

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ret = false

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out :

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mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.

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Return ret

**Caller**
Name	Describe
pm_prepare_console
pm_restore_console

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