staging: comedi: pcl812: convert private data flags to bit-fields

Convert the flags in the private data to bit-fields to save a bit of
space.

Rename the CamelCase 'use_MPC' member.

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>

diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 8728a90..6e9d5f0 100644 (file)
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -505,16 +505,10 @@ static const struct pcl812_board boardtypes[] = {
 
 struct pcl812_private {
        unsigned char dma;      /*  >0 use dma ( usedDMA channel) */
-       unsigned char use_diff; /*  =1 diff inputs */
-       unsigned char use_MPC;  /*  1=board uses MPC508A multiplexor */
-       unsigned char use_ext_trg;      /*  1=board uses external trigger */
        unsigned char range_correction; /*  =1 we must add 1 to range number */
        unsigned char old_chan_reg;     /*  lastly used chan/gain pair */
        unsigned char old_gain_reg;
        unsigned char mode_reg_int;     /*  there is stored INT number for some card */
-       unsigned char ai_neverending;   /*  =1 we do unlimited AI */
-       unsigned char ai_eos;   /*  1=EOS wake up */
-       unsigned char ai_dma;   /*  =1 we use DMA */
        unsigned int ai_poll_ptr;       /*  how many sampes transfer poll */
        unsigned int ai_act_scan;       /*  how many scans we finished */
        unsigned int ai_data_len;       /*  len of data buffer */
@@ -530,6 +524,12 @@ struct pcl812_private {
        unsigned int ao_readback[2];    /*  data for AO readback */
        unsigned int divisor1;
        unsigned int divisor2;
+       unsigned int use_diff:1;
+       unsigned int use_mpc508:1;
+       unsigned int use_ext_trg:1;
+       unsigned int ai_dma:1;
+       unsigned int ai_eos:1;
+       unsigned int ai_neverending:1;
 };
 
 static void setup_range_channel(struct comedi_device *dev,
@@ -1104,7 +1104,7 @@ static void setup_range_channel(struct comedi_device *dev,
        devpriv->old_chan_reg = chan_reg;
        devpriv->old_gain_reg = gain_reg;
 
-       if (devpriv->use_MPC) {
+       if (devpriv->use_mpc508) {
                if (devpriv->use_diff) {
                        chan_reg = chan_reg | 0x30;     /*  DIFF inputs */
                } else {
@@ -1380,7 +1380,7 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
                s->cancel       = pcl812_ai_cancel;
        }
 
-       devpriv->use_MPC = board->has_mpc508_mux;
+       devpriv->use_mpc508 = board->has_mpc508_mux;
 
        subdev++;