static
int garmin_usb_scan(libusb_unit_data *lud, int req_unit_number)
{
int found_devices = 0;
struct usb_bus *bus;
for (bus = lud->busses; bus; bus = bus->next) {
struct usb_device *dev;
for (dev = bus->devices; dev; dev = dev->next) {
/*
* Exclude Mass Storage devices (CO, OR, Nuvi, etc.)
* from this scan.
* At least on Mac, bDeviceClass isn't
* USB_MASS_STORAGE as it should be (perhaps because
* the storage driver has already bound to it?) so
* we fondle only the proprietary class devices.
*/
if (dev->descriptor.idVendor == GARMIN_VID &&
dev->config &&
dev->descriptor.bDeviceClass == USB_CLASS_VENDOR_SPEC ) {
if (req_unit_number < 0) {
garmin_usb_start(dev, lud);
/*
* It's important to call _close
* here since the bulk/intr models
* may have a "dangling" packet that
* needs to be drained.
*/
gusb_close(NULL);
} else
if (req_unit_number == found_devices)
garmin_usb_start(dev, lud);
found_devices++;
}
}
}
if (req_unit_number < 0) {
gusb_list_units();
exit (0);
}
if (0 == found_devices) {
/* It's time for Plan B. The user told us to use
* Garmin Protocol in device "usb:" but it's possible
* that they're talking to one of the dozens of models
* that is wants to read and write GPX files on a
* mounted drive. Try that now.
*/
char **dlist = os_get_garmin_mountpoints();
gdx = gdx_find_file(dlist);
if (gdx) return 1;
/* Plan C. */
fatal("Found no Garmin USB devices.\n");
} else {
return 1;
}
}
static
int garmin_usb_scan(libusb_unit_data *lud, int req_unit_number)
{
int found_devices = 0;
struct usb_bus *bus;
for (bus = lud->busses; bus; bus = bus->next) {
struct usb_device *dev;
for (dev = bus->devices; dev; dev = dev->next) {
/* Probably too promiscious of a match, but since
* Garmin doesn't document the _proper_ matching,
* we just take the easy way out for now.
* Unfortunatey, blowing on DeviceClass == Mass storage
* doesn't work on CO, at least.
*/
if (dev->descriptor.idVendor == GARMIN_VID &&
dev->config) {
switch (dev->descriptor.idProduct) {
case 0x19: // Nuvi;
case 0x2244: // Zumo;
case 0x2295: // CO;
continue;
}
if (req_unit_number < 0) {
garmin_usb_start(dev, lud);
/*
* It's important to call _close
* here since the bulk/intr models
* may have a "dangling" packet that
* needs to be drained.
*/
gusb_close(NULL);
} else
if (req_unit_number == found_devices)
garmin_usb_start(dev, lud);
found_devices++;
}
}
}
if (req_unit_number < 0) {
gusb_list_units();
exit (0);
}
if (0 == found_devices) {
/* It's time for Plan B. The user told us to use
* Garmin Protocol in device "usb:" but it's possible
* that they're talking to one of the dozens of models
* that is wants to read and write GPX files on a
* mounted drive. Try that now.
*/
char **dlist = os_get_garmin_mountpoints();
gdx = gdx_find_file(dlist);
if (gdx) return 1;
/* Plan C. */
fatal("Found no Garmin USB devices.\n");
} else {
return 1;
}
}
