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/* devices.c
*
* (c) 2015, 2018, 2022 Markus Heinz
*
* This software is licensed under the terms of the GPL.
* For details see file COPYING.
*/
#include "config.h"
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#include "inklevel.h"
#include "internal.h"
#include "devices.h"
#include "bjnp.h"
#include "libusb-utils.h"
int get_device_id(const int port, const char *device_file,
const int portnumber, char *device_id) {
int result = COULD_NOT_GET_DEVICE_ID;
if (port == USB) {
usb_printer *printer = NULL;
if (init_usb() != USB_SUCCESS) {
return COULD_NOT_GET_DEVICE_ID;
}
printer = find_printer(portnumber);
if (printer != NULL) {
result = open_device_handle(printer);
if (result == USB_SUCCESS) {
result = get_usb_device_id(printer, device_id, BUFLEN);
release_device_handle(printer);
}
free(printer);
}
shutdown_usb();
if (result == USB_SUCCESS)
return OK;
else
return COULD_NOT_GET_DEVICE_ID;
} else if (port == CUSTOM_BJNP) {
return bjnp_get_id_from_named_printer(portnumber, device_file, device_id);
} else if (port == BJNP) {
return bjnp_get_id_from_printer_port(portnumber, device_id);
} else {
return UNKNOWN_PORT_SPECIFIED;
}
}
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