This seems to be a good way.
It will block other processes accessing pci during dma
transfer. There are several processes which use the pci.
Therefore I don't want to block pci for a long time.
Anyway if there is no any other way, I will do that.
Thanx a lot.
Sumudu
----- Original Message -----
From: "Rajat Jain" <Rajat.Jain@xxxxxxxxxxxx>
To: "Sumudu Nishantha" <sumudun@xxxxxxxxx>; <kernelnewbies@xxxxxxxxxxxx>
Sent: Thursday, December 13, 2007 9:15 PM
Subject: RE: synchronize user & kernel spaces
Hi,
Instead of looping forever in the user space, you could sleep in the
driver's ioctl() method (This would implicitly cause the user application to
sleep). The driver's ioctl() would be waken up by the interrupt handler.
Thanks,
Rajat
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