diff --git a/convienience.c b/convienience.c
deleted file mode 100644
index 6565e1a..0000000
--- a/convienience.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- * Copyright (C) 2013-2014 by Kyle Keen <keenerd@gmail.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* a collection of user friendly tools
- * todo: use strtol for more flexible int parsing
- * */
-
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#ifndef _WIN32
-#include <unistd.h>
-#else
-#include <windows.h>
-#include <fcntl.h>
-#include <io.h>
-#define _USE_MATH_DEFINES
-#endif
-
-#include <math.h>
-
-#include "rtl-sdr.h"
-
-double atofs(char *s)
-/* standard suffixes */
-{
-	char last;
-	int len;
-	double suff = 1.0;
-	len = strlen(s);
-	last = s[len-1];
-	s[len-1] = '\0';
-	switch (last) {
-		case 'g':
-		case 'G':
-			suff *= 1e3;
-		case 'm':
-		case 'M':
-			suff *= 1e3;
-		case 'k':
-		case 'K':
-			suff *= 1e3;
-			suff *= atof(s);
-			s[len-1] = last;
-			return suff;
-	}
-	s[len-1] = last;
-	return atof(s);
-}
-
-double atoft(char *s)
-/* time suffixes, returns seconds */
-{
-	char last;
-	int len;
-	double suff = 1.0;
-	len = strlen(s);
-	last = s[len-1];
-	s[len-1] = '\0';
-	switch (last) {
-		case 'h':
-		case 'H':
-			suff *= 60;
-		case 'm':
-		case 'M':
-			suff *= 60;
-		case 's':
-		case 'S':
-			suff *= atof(s);
-			s[len-1] = last;
-			return suff;
-	}
-	s[len-1] = last;
-	return atof(s);
-}
-
-double atofp(char *s)
-/* percent suffixes */
-{
-	char last;
-	int len;
-	double suff = 1.0;
-	len = strlen(s);
-	last = s[len-1];
-	s[len-1] = '\0';
-	switch (last) {
-		case '%':
-			suff *= 0.01;
-			suff *= atof(s);
-			s[len-1] = last;
-			return suff;
-	}
-	s[len-1] = last;
-	return atof(s);
-}
-
-int nearest_gain(rtlsdr_dev_t *dev, int target_gain)
-{
-	int i, r, err1, err2, count, nearest;
-	int* gains;
-	r = rtlsdr_set_tuner_gain_mode(dev, 1);
-	if (r < 0) {
-		fprintf(stderr, "WARNING: Failed to enable manual gain.\n");
-		return r;
-	}
-	count = rtlsdr_get_tuner_gains(dev, NULL);
-	if (count <= 0) {
-		return 0;
-	}
-	gains = malloc(sizeof(int) * count);
-	count = rtlsdr_get_tuner_gains(dev, gains);
-	nearest = gains[0];
-	for (i=0; i<count; i++) {
-		err1 = abs(target_gain - nearest);
-		err2 = abs(target_gain - gains[i]);
-		if (err2 < err1) {
-			nearest = gains[i];
-		}
-	}
-	free(gains);
-	return nearest;
-}
-
-int verbose_set_frequency(rtlsdr_dev_t *dev, uint32_t frequency)
-{
-	int r;
-	r = rtlsdr_set_center_freq(dev, frequency);
-	if (r < 0) {
-		fprintf(stderr, "WARNING: Failed to set center freq.\n");
-	} else {
-		fprintf(stderr, "Tuned to %u Hz.\n", frequency);
-	}
-	return r;
-}
-
-int verbose_set_sample_rate(rtlsdr_dev_t *dev, uint32_t samp_rate)
-{
-	int r;
-	r = rtlsdr_set_sample_rate(dev, samp_rate);
-	if (r < 0) {
-		fprintf(stderr, "WARNING: Failed to set sample rate.\n");
-	} else {
-		fprintf(stderr, "Sampling at %u S/s.\n", samp_rate);
-	}
-	return r;
-}
-
-int verbose_direct_sampling(rtlsdr_dev_t *dev, int on)
-{
-	int r;
-	r = rtlsdr_set_direct_sampling(dev, on);
-	if (r != 0) {
-		fprintf(stderr, "WARNING: Failed to set direct sampling mode.\n");
-		return r;
-	}
-	if (on == 0) {
-		fprintf(stderr, "Direct sampling mode disabled.\n");}
-	if (on == 1) {
-		fprintf(stderr, "Enabled direct sampling mode, input 1/I.\n");}
-	if (on == 2) {
-		fprintf(stderr, "Enabled direct sampling mode, input 2/Q.\n");}
-	if (on == 3) {
-		fprintf(stderr, "Enabled no-mod direct sampling mode.\n");}
-	return r;
-}
-
-int verbose_offset_tuning(rtlsdr_dev_t *dev)
-{
-	int r;
-	r = rtlsdr_set_offset_tuning(dev, 1);
-	if (r != 0) {
-		fprintf(stderr, "WARNING: Failed to set offset tuning.\n");
-	} else {
-		fprintf(stderr, "Offset tuning mode enabled.\n");
-	}
-	return r;
-}
-
-int verbose_auto_gain(rtlsdr_dev_t *dev)
-{
-	int r;
-	r = rtlsdr_set_tuner_gain_mode(dev, 0);
-	if (r != 0) {
-		fprintf(stderr, "WARNING: Failed to set tuner gain.\n");
-	} else {
-		fprintf(stderr, "Tuner gain set to automatic.\n");
-	}
-	return r;
-}
-
-int verbose_gain_set(rtlsdr_dev_t *dev, int gain)
-{
-	int r;
-	r = rtlsdr_set_tuner_gain_mode(dev, 1);
-	if (r < 0) {
-		fprintf(stderr, "WARNING: Failed to enable manual gain.\n");
-		return r;
-	}
-	r = rtlsdr_set_tuner_gain(dev, gain);
-	if (r != 0) {
-		fprintf(stderr, "WARNING: Failed to set tuner gain.\n");
-	} else {
-		fprintf(stderr, "Tuner gain set to %0.2f dB.\n", gain/10.0);
-	}
-	return r;
-}
-
-int verbose_ppm_set(rtlsdr_dev_t *dev, int ppm_error)
-{
-	int r;
-	if (ppm_error == 0) {
-		return 0;}
-	r = rtlsdr_set_freq_correction(dev, ppm_error);
-	if (r < 0) {
-		fprintf(stderr, "WARNING: Failed to set ppm error.\n");
-	} else {
-		fprintf(stderr, "Tuner error set to %i ppm.\n", ppm_error);
-	}
-	return r;
-}
-
-int verbose_ppm_eeprom(rtlsdr_dev_t *dev, int *ppm_error)
-{
-	#define start_char ' '
-	#define stop_char 'p'
-	int i, r, len, status = -1;
-	char vendor[256], product[256], serial[256];
-	r = rtlsdr_get_usb_strings(dev, vendor, product, serial);
-	if (r) {
-		return r;
-	}
-	len = strlen(serial);
-	if (len <= 3) {
-		return -1;}
-	if (serial[len-1] != stop_char) {
-		return -1;}
-	serial[len-1] = '\0';
-	for (i=len-3; i>=0; i--) {
-		if (serial[i] != start_char) {
-			continue;}
-		fprintf(stderr, "PPM calibration found in eeprom.\n");
-		status = 0;
-		*ppm_error = atoi(serial + i + 1);
-		break;
-	}
-	serial[len-1] = stop_char;
-	return status;
-}
-
-int verbose_reset_buffer(rtlsdr_dev_t *dev)
-{
-	int r;
-	r = rtlsdr_reset_buffer(dev);
-	if (r < 0) {
-		fprintf(stderr, "WARNING: Failed to reset buffers.\n");}
-	return r;
-}
-
-int verbose_device_search(char *s)
-{
-	int i, device_count, device, offset;
-	char *s2;
-	char vendor[256], product[256], serial[256];
-	device_count = rtlsdr_get_device_count();
-	if (!device_count) {
-		fprintf(stderr, "No supported devices found.\n");
-		return -1;
-	}
-	fprintf(stderr, "Found %d device(s):\n", device_count);
-	for (i = 0; i < device_count; i++) {
-		rtlsdr_get_device_usb_strings(i, vendor, product, serial);
-		fprintf(stderr, "  %d:  %s, %s, SN: %s\n", i, vendor, product, serial);
-	}
-	fprintf(stderr, "\n");
-	/* does string look like raw id number */
-	device = (int)strtol(s, &s2, 0);
-	if (s2[0] == '\0' && device >= 0 && device < device_count) {
-		fprintf(stderr, "Using device %d: %s\n",
-			device, rtlsdr_get_device_name((uint32_t)device));
-		return device;
-	}
-	/* does string exact match a serial */
-	for (i = 0; i < device_count; i++) {
-		rtlsdr_get_device_usb_strings(i, vendor, product, serial);
-		if (strcmp(s, serial) != 0) {
-			continue;}
-		device = i;
-		fprintf(stderr, "Using device %d: %s\n",
-			device, rtlsdr_get_device_name((uint32_t)device));
-		return device;
-	}
-	/* does string prefix match a serial */
-	for (i = 0; i < device_count; i++) {
-		rtlsdr_get_device_usb_strings(i, vendor, product, serial);
-		if (strncmp(s, serial, strlen(s)) != 0) {
-			continue;}
-		device = i;
-		fprintf(stderr, "Using device %d: %s\n",
-			device, rtlsdr_get_device_name((uint32_t)device));
-		return device;
-	}
-	/* does string suffix match a serial */
-	for (i = 0; i < device_count; i++) {
-		rtlsdr_get_device_usb_strings(i, vendor, product, serial);
-		offset = strlen(serial) - strlen(s);
-		if (offset < 0) {
-			continue;}
-		if (strncmp(s, serial+offset, strlen(s)) != 0) {
-			continue;}
-		device = i;
-		fprintf(stderr, "Using device %d: %s\n",
-			device, rtlsdr_get_device_name((uint32_t)device));
-		return device;
-	}
-	fprintf(stderr, "No matching devices found.\n");
-	return -1;
-}
-
-// vim: tabstop=8:softtabstop=8:shiftwidth=8:noexpandtab