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Wake on USB from a USBUART
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Wake on USB from a USBUART

bec posted on 31 Aug 2010 5:53 AM PST
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2 Forum Posts

 I have an application where I would like to wake the PC from a USBUART device.

i have read a lot about USB communication and found I should be possible to wakeup the PC with a RING signal send to the usbser.sys driver.

I have downloaded non Cypress device and see the PC is ready to wakeup. I have also connected another device (FTDI device) and let this device wakeup the pc. It's all working.

My problem is now to send a ring signal from a CY8C24894. I have used this command: 

USBUART_SendStateNotify(USBUART_RING);

but without the wanted result. 

Have anybody tried to wakeup the PC from at USBUART?

Best regards

Bent







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