static int init_device (void)
{
char buf [4096], *cp = &buf [0];
int fd;
int result;
#ifdef AIO
if (iso)
result = iso_autoconfig ();
else
#endif
result = autoconfig ();
if (result < 0) {
fprintf (stderr, "?? don't recognize %s %s device\n",
gadgetfs, iso ? "iso" : "bulk");
return result;
}
fd = open (DEVNAME, O_RDWR);
if (fd < 0) {
perror (DEVNAME);
return -errno;
}
*(__u32 *)cp = 0; /* tag for this format */
cp += 4;
/* write full then high speed configs */
cp = build_config (cp, fs_eps);
if (HIGHSPEED)
cp = build_config (cp, hs_eps);
device_desc.idVendor = __cpu_to_le16 (vendorid);
device_desc.idProduct = __cpu_to_le16 (productid);
if (verbose) {
fprintf(stderr, "idVendor=%04X idProduct=%04X\n", vendorid,
productid);
}
/* and device descriptor at the end */
memcpy (cp, &device_desc, sizeof device_desc);
cp += sizeof device_desc;
result = write (fd, &buf [0], cp - &buf [0]);
if (result < 0) {
perror ("write dev descriptors");
close (fd);
return result;
} else if (result != (cp - buf)) {
fprintf (stderr, "dev init, wrote %d expected %ld\n",
result, (long int) (cp - buf));
close (fd);
return -EIO;
}
return fd;
}
static int init_device (void)
{
char buf [4096], *cp = &buf [0];
int fd;
int status;
#ifdef AIO
if (iso)
status = iso_autoconfig ();
else
#endif
status = autoconfig ();
if (status < 0) {
fprintf (stderr, "?? don't recognize /dev/gadget %s device\n",
iso ? "iso" : "bulk");
return status;
}
fd = open (DEVNAME, O_RDWR);
if (fd < 0) {
perror (DEVNAME);
return -errno;
}
*(__u32 *)cp = 0; /* tag for this format */
cp += 4;
/* write full then high speed configs */
cp = build_config (cp, fs_eps);
if (HIGHSPEED)
cp = build_config (cp, hs_eps);
/* and device descriptor at the end */
memcpy (cp, &device_desc, sizeof device_desc);
cp += sizeof device_desc;
status = write (fd, &buf [0], cp - &buf [0]);
if (status < 0) {
perror ("write dev descriptors");
close (fd);
return status;
} else if (status != (cp - buf)) {
fprintf (stderr, "dev init, wrote %d expected %d\n",
status, cp - buf);
close (fd);
return -EIO;
}
return fd;
}
static void serial8250_config_port(struct uart_port *port, int flags)
{
struct uart_8250_port *up = (struct uart_8250_port *)port;
struct resource *res_std = NULL, *res_rsa = NULL;
int probeflags = PROBE_ANY;
probeflags &= ~PROBE_RSA;
if (flags & UART_CONFIG_TYPE)
autoconfig(up, probeflags);
/*
* If the port wasn't an RSA port, release the resource.
*/
if (up->port.type != PORT_RSA && res_rsa)
release_resource(res_rsa);
if (up->port.type == PORT_UNKNOWN && res_std)
release_resource(res_std);
}
