#define REG_SER_CONTROL 24 /*Serial Interface Control Register*/
#define REG_ID 31 /*ID Register*/
-/*From figure 17 in the datasheet
-* These bits get ORed with the address to form
-* the instruction byte */
+/*
+ * From figure 17 in the datasheet
+ * These bits get ORed with the address to form
+ * the instruction byte
+ */
/*Instruction Bit masks*/
#define INST_MODE_bm (1<<7)
#define INST_READ_bm (1<<6)
uint8_t channel, mux_cnv;
channel = attr->index;
- /*TODO: add support for conversions
- *other than single ended with a gain of 1*/
+ /*
+ * TODO: add support for conversions
+ * other than single ended with a gain of 1
+ */
/*MUX_M3_bm forces single ended*/
/*This is also where the gain of the PGA would be set*/
ads7871_write_reg8(spi, REG_GAIN_MUX,
ret = ads7871_read_reg8(spi, REG_GAIN_MUX);
mux_cnv = ((ret & MUX_CNV_bm)>>MUX_CNV_bv);
- /*on 400MHz arm9 platform the conversion
- *is already done when we do this test*/
+ /*
+ * on 400MHz arm9 platform the conversion
+ * is already done when we do this test
+ */
while ((i < 2) && mux_cnv) {
i++;
ret = ads7871_read_reg8(spi, REG_GAIN_MUX);
ret = ads7871_read_reg8(spi, REG_OSC_CONTROL);
dev_dbg(&spi->dev, "REG_OSC_CONTROL write:%x, read:%x\n", val, ret);
- /*because there is no other error checking on an SPI bus
- we need to make sure we really have a chip*/
+ /*
+ * because there is no other error checking on an SPI bus
+ * we need to make sure we really have a chip
+ */
if (val != ret) {
err = -ENODEV;
goto exit;
.remove = __devexit_p(ads7871_remove),
};
-static int __init ads7871_init(void)
-{
- return spi_register_driver(&ads7871_driver);
-}
-
-static void __exit ads7871_exit(void)
-{
- spi_unregister_driver(&ads7871_driver);
-}
-
-module_init(ads7871_init);
-module_exit(ads7871_exit);
+module_spi_driver(ads7871_driver);
MODULE_AUTHOR("Paul Thomas <pthomas8589@gmail.com>");
MODULE_DESCRIPTION("TI ADS7871 A/D driver");