diff --git a/netledPi.c b/netledPi.c
deleted file mode 100644
index 9136aef..0000000
--- a/netledPi.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/**************************************************************************
- * This is free and unencumbered software released into the public domain.
- *
- * Anyone is free to copy, modify, publish, use, compile, sell, or
- * distribute this software, either in source code form or as a compiled
- * binary, for any purpose, commercial or non-commercial, and by any
- * means.
- *
- * In jurisdictions that recognize copyright laws, the author or authors
- * of this software dedicate any and all copyright interest in the
- * software to the public domain. We make this dedication for the benefit
- * of the public at large and to the detriment of our heirs and
- * successors. We intend this dedication to be an overt act of
- * relinquishment in perpetuity of all present and future rights to this
- * software under copyright law.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * For more information, please refer to
-
- *
- * A network activity light for the Raspberry Pi, using an LED connected to a GPIO pin.
- * Based on hddled.c - http://members.optusnet.com.au/foonly/whirlpool/code/hddled.c -
- * This program uses the WiringPi library by Gordon Henderson - http://wiringpi.com/ - Thanks, Gordon!
- *
- *
- * To compile:
- * gcc -Wall -O3 -o netledPi netledPi.c -lwiringPi
- *
- * Options:
- * -d, --detach Detach from terminal (become a daemon)
- * -p, --pin=VALUE GPIO pin (using wiringPi numbering scheme) where LED is connected (default: 11)
- * -r, --refresh=VALUE Refresh interval (default: 20 ms)
- *
- * GPIO pin ----|>|----[330]----+
- * LED |
- * ===
- * Ground
- *
- * Default LED Pin - wiringPi pin 11 is BCM_GPIO 7, physical pin 26 on the Pi's P1 header.
- * Note: This pin is also used for the SPI interface. If you have SPI add-ons connected,
- * you'll have to use the -p option to change it to another, unused pin.
- */
-
-
-#define NETDEVICES "/proc/net/dev"
-
-
-#define _GNU_SOURCE
-
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-
-
-static unsigned int o_refresh = 20; /* milliseconds */
-static unsigned int o_gpiopin_tx = 2;
-static unsigned int o_gpiopin_rx = 3;
-static int o_detach = 0;
-
-static volatile sig_atomic_t running = 1;
-static char *line = NULL;
-static size_t len = 0;
-
-/* Update the TX LED */
-void tx_led(int on) {
- static int tx_current = 1; /* Ensure the LED turns off on first call */
- if (tx_current == on)
- return;
-
- if (on)
- gpioWrite( o_gpiopin_tx, PI_HIGH );
- else
- gpioWrite( o_gpiopin_tx, PI_LOW );
-
- tx_current = on;
-}
-
-/* Update the RX LED */
-void rx_led(int on) {
- static int rx_current = 1; /* Ensure the LED turns off on first call */
- if (rx_current == on)
- return;
-
- if (on)
- gpioWrite( o_gpiopin_rx, PI_HIGH );
- else
- gpioWrite( o_gpiopin_rx, PI_LOW );
-
- rx_current = on;
-}
-
-/* Reread the netdevices file */
-int activity(FILE *netdevices) {
- static unsigned int prev_inpackets, prev_outpackets;
- unsigned int inpackets, outpackets;
- unsigned int device_inpackets, device_outpackets;
- int found_inpackets, found_outpackets;
- int result;
- char *ptr;
- char device[32];
-
- /* Go to the beginning of the netdevices file */
- result = TEMP_FAILURE_RETRY(fseek(netdevices, 0L, SEEK_SET));
- if (result) {
- perror("Could not rewind " NETDEVICES);
- return result;
- }
-
- /* Clear glibc's buffer */
- result = TEMP_FAILURE_RETRY(fflush(netdevices));
- if (result) {
- perror("Could not flush input stream");
- return result;
- }
-
- /* Extract the I/O stats */
- inpackets = outpackets = 0;
- found_inpackets = found_outpackets = 0;
- device_inpackets = device_outpackets = 0;
- while (getline(&line, &len, netdevices) != -1 && errno != EINTR) {
- ptr = line;
- while (*ptr == ' ') ptr++; // Skip leading spaces
- if (sscanf(ptr, "%s %*u %u %*u %*u %*u %*u %*u %*u %*u %u %*u %*u %*u %*u %*u %*u", device, &device_inpackets, &device_outpackets)) {
- if(strstr(device, "lo:")) continue; // Skip loopback interface
- found_inpackets++;
- found_outpackets++;
- inpackets += device_inpackets;
- outpackets += device_outpackets;
- }
-
- }
- if (!found_inpackets || !found_outpackets) {
- fprintf(stderr, "Could not find required lines in " NETDEVICES);
- return -1;
- }
-
- /* Anything changed? */
- if( prev_inpackets != inpackets )
- rx_led( PI_HIGH );
- else
- rx_led( PI_LOW );
-
- if( prev_outpackets != outpackets )
- tx_led( PI_HIGH );
- else
- tx_led( PI_LOW );
-
- prev_inpackets = inpackets;
- prev_outpackets = outpackets;
-
- return 0;
-}
-
-
-
-/* Signal handler -- break out of the main loop */
-void shutdown(int sig) {
- running = 0;
-}
-
-/* Argp parser function */
-error_t parse_options(int key, char *arg, struct argp_state *state) {
- switch (key) {
- case 'd':
- o_detach = 1;
- break;
- case 'r':
- o_refresh = strtol(arg, NULL, 10);
- if (o_refresh < 10)
- argp_failure(state, EXIT_FAILURE, 0,
- "refresh interval must be at least 10");
- break;
- case 3:
- o_gpiopin_tx = strtol(arg, NULL, 10);
- if ((o_gpiopin_tx < 0) || (o_gpiopin_tx > 29))
- argp_failure(state, EXIT_FAILURE, 0,
- "pin number must be between 0 and 29");
- break;
- case 4:
- o_gpiopin_rx = strtol(arg, NULL, 10);
- if ((o_gpiopin_rx < 0) || (o_gpiopin_rx > 29))
- argp_failure(state, EXIT_FAILURE, 0,
- "pin number must be between 0 and 29");
- break;
- }
- return 0;
-}
-
-int main(int argc, char **argv) {
- struct argp_option options[] = {
- { "detach", 'd', NULL, 0, "Detach from terminal" },
- { "tx" , 0, "VALUE", 0, "GPIO pin where LED is connected (transmit data) (default: BCM 2 physical pin 3 on the P1 header)" },
- { "rx", 1, "VALUE", 0, "GPIO pin where LED is connected (receive data) (default: BCM 3 physical pin 5 on the P1 header)" },
- { "refresh", 'r', "VALUE", 0, "Refresh interval (default: 20 ms)" },
- { 0 },
- };
- struct argp parser = {
- NULL, parse_options, NULL,
- "Show network activity using an LED wired to a GPIO pin.",
- NULL, NULL, NULL
- };
- int status = EXIT_FAILURE;
- FILE *netdevices = NULL;
- struct timespec delay;
-
- /* Parse the command-line */
- parser.options = options;
- if (argp_parse(&parser, argc, argv, ARGP_NO_ARGS, NULL, NULL))
- goto out;
-
- delay.tv_sec = o_refresh / 1000;
- delay.tv_nsec = 1000000 * (o_refresh % 1000);
-
- /* If we can't set up pigpio, then just bail */
- if( gpioInitialise() < 0 ) {
- fprintf( stderr, "Unable to setup the piGPIO library. STOP.");
- return -1;
- }
- gpioSetMode( o_gpiopin_rx, PI_OUTPUT );
- gpioSetMode( o_gpiopin_tx, PI_OUTPUT );
-
-
- /* Open the netdevices file */
- netdevices = fopen(NETDEVICES, "r");
- if (!netdevices) {
- perror("Could not open " NETDEVICES " for reading");
- goto out;
- }
-
- /* Ensure the LED is off */
- tx_led(0);
- rx_led(0);
-
- /* Save the current I/O stat values */
- if (activity(netdevices) < 0)
- goto out;
-
- /* Detach from terminal? */
- if (o_detach) {
- pid_t child = fork();
- if (child < 0) {
- perror("Could not detach from terminal");
- goto out;
- }
- if (child) {
- /* I am the parent */
- status = EXIT_SUCCESS;
- goto out;
- }
- }
-
- /* We catch these signals so we can clean up */
- {
- struct sigaction action;
- memset(&action, 0, sizeof(action));
- action.sa_handler = shutdown;
- sigemptyset(&action.sa_mask);
- action.sa_flags = 0; /* We block on usleep; don't use SA_RESTART */
- sigaction(SIGHUP, &action, NULL);
- sigaction(SIGINT, &action, NULL);
- sigaction(SIGTERM, &action, NULL);
- }
-
- /* Loop until signal received */
- while (running) {
- if (nanosleep(&delay, NULL) < 0)
- break;
- if( activity(netdevices) < 0 )
- break;
- }
-
- /* Ensure the LED is off */
- tx_led(0);
- rx_led(0);
-
- status = EXIT_SUCCESS;
-
-out:
- /* Halt any library functions */
- gpioTerminate();
-
- if (line) free(line);
- if (netdevices) fclose(netdevices);
- return status;
-}
-