Ignore data and data_len in comedi_cmd.

diff --git a/comedi/drivers/s626.c b/comedi/drivers/s626.c
index 1bdeec3a4e251141919623176eb513ff843d3ce1..8d25a78100c0613173ce8e6e3ba2a67303203ea5 100644 (file)
--- a/comedi/drivers/s626.c
+++ b/comedi/drivers/s626.c
@@ -971,10 +971,8 @@ static irqreturn_t s626_irq_handler(int irq, void *d PT_REGS_ARG)
        enc_private *k;
        unsigned long flags;
        int32_t *readaddr;
-       uint32_t irqtype, irqstatus, datacount;
-       int kernel_transfer = 0;
+       uint32_t irqtype, irqstatus;
        int i = 0;
-       sampl_t *databuf = NULL;
        sampl_t tempdata;
        uint8_t group;
        uint16_t irqbit;
@@ -1010,13 +1008,6 @@ static irqreturn_t s626_irq_handler(int irq, void *d PT_REGS_ARG)
                s = dev->subdevices;
                cmd = &(s->async->cmd);
 
-               // verify if data buffer exists
-               if (s->async->cmd.data != NULL) {
-                       DEBUG("s626_irq_handler: Kernel transfer asserted\n");
-                       kernel_transfer = 1;
-                       databuf = s->async->cmd.data;
-                       datacount = s->async->cmd.data_len;
-               }
                // Init ptr to DMA buffer that holds new ADC data.  We skip the
                // first uint16_t in the buffer because it contains junk data from
                // the final ADC of the previous poll list scan.
@@ -1029,17 +1020,6 @@ static irqreturn_t s626_irq_handler(int irq, void *d PT_REGS_ARG)
                        tempdata = s626_ai_reg_to_uint((int)*readaddr);
                        readaddr++;
 
-                       if (kernel_transfer) {
-                               //send buffer overflow event
-                               DEBUG("s626_irq_handler: in kernel transfer...\n");
-                               if (datacount < 0) {
-                                       s->async->events |= COMEDI_CB_OVERFLOW;
-                               } else {
-                                       datacount--;
-                                       // transfer data
-                                       *databuf++ = tempdata;
-                               }
-                       }
                        //put data into read buffer
                        // comedi_buf_put(s->async, tempdata);
                        if (cfc_write_to_buffer(s, tempdata) == 0)