view cp2102/write_eeprom.c @ 105:1e820ed0904e

Installed-binaries: list of binaries installed by this package I am establishing a new convention for all FreeCalypso tools, across different packages and source repositories: each FC tools package will have a file name Installed-binaries listing all user-invokable binaries that package installs in /opt/freecalypso/bin. These files are to serve as an aid to users and distro package maintainers who prefer to not add /opt/freecalypso/bin to their PATH. The alternative to adding this directory to PATH is to create a symlink for every installed binary in some standard location such as /usr/bin or /usr/local/bin, pointing to the actual binary in /opt/freecalypso/bin; having a list of all FC-installed binaries in a standardized format will allow this process to be automated.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 29 Sep 2023 19:42:53 +0000
parents c6d04771bf6a
children
line wrap: on
line source

/*
 * This module implements the elementary function for writing the EEPROM
 * on a CP2102 device.
 */

#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <usb.h>
#include "cp210x_defs.h"

extern u_char eeprom[SIZE_EEPROM];

void
write_eeprom(usbh)
	usb_dev_handle *usbh;
{
	int rc;

	rc = usb_control_msg(usbh, DEVICE_OUT_REQTYPE, CP210x_CONFIG,
			     REG_EEPROM, 0, (char *) eeprom, SIZE_EEPROM,
			     USB_WRITE_TIMEOUT);
	if (rc != SIZE_EEPROM) {
		fprintf(stderr,
			"EEPROM write error: usb_control_msg() returned %d\n",
			rc);
		exit(1);
	}
}