staging: comedi: adl_pci9118: ai (*insn_read) does not use interrupts
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Fri, 5 Sep 2014 16:25:41 +0000 (09:25 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 8 Sep 2014 20:56:08 +0000 (13:56 -0700)
The analog input (*insn_read) in this driver is done as a software-triggered,
polled operation. The PCI9118_AI_CTRL_INT bit in the control register, which
is actually set in setup_channel_list(), should not be set.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/adl_pci9118.c

index 56458acdac7595169844e6a796886d62b4a523de..e3e405237330d7469d9e19ecfcb5f17749dd3372 100644 (file)
@@ -483,7 +483,7 @@ static int pci9118_insn_read_ai(struct comedi_device *dev,
        int ret;
        int n;
 
-       devpriv->AdControlReg = PCI9118_AI_CTRL_INT;
+       devpriv->AdControlReg = 0;
        devpriv->AdFunctionReg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG;
        outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_AI_CFG_REG);
                                                /*