Fix unused parameter warning [-Werror=unused-parameter]

Author: pdp7

source/c_pwm.c

@@ -272,7 +272,7 @@ BBIO_err pwm_set_duty_cycle(const char *key, float duty) {
     return BBIO_OK;
 }
 
-BBIO_err pwm_setup(const char *key, float duty, float freq, int polarity)
+BBIO_err pwm_setup(const char *key, __attribute__ ((unused)) float duty, __attribute__ ((unused)) float freq, __attribute__ ((unused)) int polarity)
 {
     BBIO_err err;
     struct pwm_exp *new_pwm;

source/py_adc.c

@@ -39,7 +39,7 @@ SOFTWARE.
 //}
 
 // python function setup()
-static PyObject *py_setup_adc(PyObject *self, PyObject *args)
+static PyObject *py_setup_adc(__attribute__ ((unused)) PyObject *self, __attribute__ ((unused)) PyObject *args)
 {
     BBIO_err err;
 
@@ -55,7 +55,7 @@ static PyObject *py_setup_adc(PyObject *self, PyObject *args)
 }
 
 // python function read(channel)
-static PyObject *py_read(PyObject *self, PyObject *args)
+static PyObject *py_read(__attribute__ ((unused)) PyObject *self, PyObject *args)
 {
     unsigned int ain;
     float value;
@@ -98,7 +98,7 @@ static PyObject *py_read(PyObject *self, PyObject *args)
 }
 
 // python function read(channel)
-static PyObject *py_read_raw(PyObject *self, PyObject *args)
+static PyObject *py_read_raw(__attribute__ ((unused)) PyObject *self, PyObject *args)
 {
     unsigned int ain;
     float value;

source/py_pwm.c

@@ -27,7 +27,7 @@ SOFTWARE.
 #include "c_pwm.h"
 
 // python function cleanup()
-static PyObject *py_cleanup(PyObject *self, PyObject *args)
+static PyObject *py_cleanup(__attribute__ ((unused)) PyObject *self, __attribute__ ((unused)) PyObject *args)
 {
     // unexport the PWM
     pwm_cleanup();
@@ -36,7 +36,7 @@ static PyObject *py_cleanup(PyObject *self, PyObject *args)
 }
 
 // python function start(channel, duty_cycle, freq)
-static PyObject *py_start_channel(PyObject *self, PyObject *args, PyObject *kwargs)
+static PyObject *py_start_channel(__attribute__ ((unused)) PyObject *self, PyObject *args, PyObject *kwargs)
 {
     char key[8];
     char *channel;
@@ -106,7 +106,7 @@ static PyObject *py_start_channel(PyObject *self, PyObject *args, PyObject *kwar
 }
 
 // python function stop(channel)
-static PyObject *py_stop_channel(PyObject *self, PyObject *args, PyObject *kwargs)
+static PyObject *py_stop_channel(__attribute__ ((unused)) PyObject *self, PyObject *args, __attribute__ ((unused)) PyObject *kwargs)
 {
     char key[8];
     char *channel;
@@ -138,7 +138,7 @@ static PyObject *py_stop_channel(PyObject *self, PyObject *args, PyObject *kwarg
 }
 
 // python method PWM.set_duty_cycle(channel, duty_cycle)
-static PyObject *py_set_duty_cycle(PyObject *self, PyObject *args, PyObject *kwargs)
+static PyObject *py_set_duty_cycle(__attribute__ ((unused)) PyObject *self, PyObject *args, PyObject *kwargs)
 {
     char key[8];
     char *channel;
@@ -172,7 +172,7 @@ static PyObject *py_set_duty_cycle(PyObject *self, PyObject *args, PyObject *kwa
 }
 
 // python method PWM.set_frequency(channel, frequency)
-static PyObject *py_set_frequency(PyObject *self, PyObject *args, PyObject *kwargs)
+static PyObject *py_set_frequency(__attribute__ ((unused)) PyObject *self, PyObject *args, PyObject *kwargs)
 {
     char key[8];
     char *channel;
@@ -257,4 +257,4 @@ PyMODINIT_FUNC initPWM(void)
 #else
     return;
 #endif
-}
+}

source/py_uart.c

@@ -29,7 +29,7 @@ SOFTWARE.
 const char *valid_uarts[4] = {"UART1", "UART2", "UART4", "UART5"};
 
 // python function cleanup()
-static PyObject *py_cleanup(PyObject *self, PyObject *args)
+static PyObject *py_cleanup(__attribute__ ((unused)) PyObject *self, __attribute__ ((unused)) PyObject *args)
 {
     // unexport the UART
     uart_cleanup();
@@ -38,7 +38,7 @@ static PyObject *py_cleanup(PyObject *self, PyObject *args)
 }
 
 // python function setup()
-static PyObject *py_setup_uart(PyObject *self, PyObject *args)
+static PyObject *py_setup_uart(__attribute__ ((unused)) PyObject *self, PyObject *args)
 {
     char dt[FILENAME_BUFFER_SIZE];
     char *channel;
@@ -107,4 +107,4 @@ PyMODINIT_FUNC initUART(void)
 #else
     return;
 #endif
-}
+}

source/spimodule.c

@@ -60,7 +60,7 @@ typedef struct {
 } SPI;
 
 static PyObject *
-SPI_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+SPI_new(PyTypeObject *type, __attribute__ ((unused)) PyObject *args, __attribute__ ((unused)) PyObject *kwds)
 {
 	SPI *self;
 	if ((self = (SPI *)type->tp_alloc(type, 0)) == NULL)
@@ -380,15 +380,15 @@ static int __SPI_set_mode( int fd, __u8 mode) {
 }
 
 static PyObject *
-SPI_get_mode(SPI *self, void *closure)
+SPI_get_mode(SPI *self, __attribute__ ((unused)) void *closure)
 {
 	PyObject *result = Py_BuildValue("i", (self->mode & (SPI_CPHA | SPI_CPOL) ) );
 
 	return result;
 }
 
 static PyObject *
-SPI_get_cshigh(SPI *self, void *closure)
+SPI_get_cshigh(SPI *self, __attribute__ ((unused)) void *closure)
 {
 	PyObject *result;
 
@@ -402,7 +402,7 @@ SPI_get_cshigh(SPI *self, void *closure)
 }
 
 static PyObject *
-SPI_get_lsbfirst(SPI *self, void *closure)
+SPI_get_lsbfirst(SPI *self, __attribute__ ((unused)) void *closure)
 {
 	PyObject *result;
 
@@ -416,7 +416,7 @@ SPI_get_lsbfirst(SPI *self, void *closure)
 }
 
 static PyObject *
-SPI_get_3wire(SPI *self, void *closure)
+SPI_get_3wire(SPI *self, __attribute__ ((unused)) void *closure)
 {
 	PyObject *result;
 
@@ -430,7 +430,7 @@ SPI_get_3wire(SPI *self, void *closure)
 }
 
 static PyObject *
-SPI_get_loop(SPI *self, void *closure)
+SPI_get_loop(SPI *self, __attribute__ ((unused)) void *closure)
 {
 	PyObject *result;
 
@@ -445,7 +445,7 @@ SPI_get_loop(SPI *self, void *closure)
 
 
 static int
-SPI_set_mode(SPI *self, PyObject *val, void *closure)
+SPI_set_mode(SPI *self, PyObject *val, __attribute__ ((unused)) void *closure)
 {
 	uint8_t mode, tmp;
 
@@ -480,7 +480,7 @@ SPI_set_mode(SPI *self, PyObject *val, void *closure)
 }
 
 static int
-SPI_set_cshigh(SPI *self, PyObject *val, void *closure)
+SPI_set_cshigh(SPI *self, PyObject *val, __attribute__ ((unused)) void *closure)
 {
 	uint8_t tmp;
 
@@ -508,7 +508,7 @@ SPI_set_cshigh(SPI *self, PyObject *val, void *closure)
 }
 
 static int
-SPI_set_lsbfirst(SPI *self, PyObject *val, void *closure)
+SPI_set_lsbfirst(SPI *self, PyObject *val, __attribute__ ((unused)) void *closure)
 {
 	uint8_t tmp;
 
@@ -536,7 +536,7 @@ SPI_set_lsbfirst(SPI *self, PyObject *val, void *closure)
 }
 
 static int
-SPI_set_3wire(SPI *self, PyObject *val, void *closure)
+SPI_set_3wire(SPI *self, PyObject *val, __attribute__ ((unused)) void *closure)
 {
 	uint8_t tmp;
 
@@ -564,7 +564,7 @@ SPI_set_3wire(SPI *self, PyObject *val, void *closure)
 }
 
 static int
-SPI_set_loop(SPI *self, PyObject *val, void *closure)
+SPI_set_loop(SPI *self, PyObject *val, __attribute__ ((unused)) void *closure)
 {
 	uint8_t tmp;
 
@@ -592,14 +592,14 @@ SPI_set_loop(SPI *self, PyObject *val, void *closure)
 }
 
 static PyObject *
-SPI_get_bpw(SPI *self, void *closure)
+SPI_get_bpw(SPI *self, __attribute__ ((unused)) void *closure)
 {
 	PyObject *result = Py_BuildValue("i", self->bpw);
 	return result;
 }
 
 static int
-SPI_set_bpw(SPI *self, PyObject *val, void *closure)
+SPI_set_bpw(SPI *self, PyObject *val, __attribute__ ((unused)) void *closure)
 {
 	uint8_t bits;
 
@@ -633,14 +633,14 @@ SPI_set_bpw(SPI *self, PyObject *val, void *closure)
 }
 
 static PyObject *
-SPI_get_msh(SPI *self, void *closure)
+SPI_get_msh(SPI *self, __attribute__ ((unused)) void *closure)
 {
 	PyObject *result = Py_BuildValue("i", self->msh);
 	return result;
 }
 
 static int
-SPI_set_msh(SPI *self, PyObject *val, void *closure)
+SPI_set_msh(SPI *self, PyObject *val, __attribute__ ((unused)) void *closure)
 {
 	uint32_t msh;