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-rw-r--r--drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c14
-rw-r--r--drivers/staging/comedi/drivers/addi_apci_1564.c18
2 files changed, 0 insertions, 32 deletions
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
index a1730e9e7135..8a613ae0acba 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
@@ -340,17 +340,3 @@ static int apci1564_timer_read(struct comedi_device *dev,
}
return insn->n;
}
-
-/*
- * Reads the interrupt status register
- */
-static int apci1564_do_read(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- struct apci1564_private *devpriv = dev->private;
-
- *data = devpriv->do_int_type;
- return insn->n;
-}
diff --git a/drivers/staging/comedi/drivers/addi_apci_1564.c b/drivers/staging/comedi/drivers/addi_apci_1564.c
index 819255b2d67c..543cb074213a 100644
--- a/drivers/staging/comedi/drivers/addi_apci_1564.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1564.c
@@ -13,7 +13,6 @@ struct apci1564_private {
unsigned int mode1; /* riding-edge/high level channels */
unsigned int mode2; /* falling-edge/low level channels */
unsigned int ctrl; /* interrupt mode OR (edge) . AND (level) */
- unsigned int do_int_type;
unsigned char timer_select_mode;
unsigned char mode_select_register;
struct task_struct *tsk_current;
@@ -25,8 +24,6 @@ static int apci1564_reset(struct comedi_device *dev)
{
struct apci1564_private *devpriv = dev->private;
- devpriv->do_int_type = 0;
-
/* Disable the input interrupts and reset status register */
outl(0x0, devpriv->amcc_iobase + APCI1564_DI_IRQ_REG);
inl(devpriv->amcc_iobase + APCI1564_DI_INT_STATUS_REG);
@@ -83,20 +80,6 @@ static irqreturn_t apci1564_interrupt(int irq, void *d)
outl(status, devpriv->amcc_iobase + APCI1564_DI_IRQ_REG);
}
- status = inl(devpriv->amcc_iobase + APCI1564_DO_IRQ_REG);
- if (status & 0x01) {
- /* Check for Digital Output interrupt Type */
- /* 1: VCC interrupt */
- /* 2: CC interrupt */
- devpriv->do_int_type = inl(devpriv->amcc_iobase +
- APCI1564_DO_INT_STATUS_REG) & 0x3;
- /* Disable the Interrupt */
- outl(0x0, devpriv->amcc_iobase + APCI1564_DO_INT_CTRL_REG);
-
- /* Sends signal to user space */
- send_sig(SIGIO, devpriv->tsk_current, 0);
- }
-
status = inl(devpriv->amcc_iobase + APCI1564_TIMER_IRQ_REG);
if (status & 0x01) {
/* Disable Timer Interrupt */
@@ -407,7 +390,6 @@ static int apci1564_auto_attach(struct comedi_device *dev,
s->range_table = &range_digital;
s->insn_config = apci1564_do_config;
s->insn_bits = apci1564_do_insn_bits;
- s->insn_read = apci1564_do_read;
/* Change-Of-State (COS) interrupt subdevice */
s = &dev->subdevices[2];