+/*
+ * TeensyTAS, TAS input player for MegaDrive
+ * Copyright (c) 2014 notaz
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// printf("lflag: 0%o\n", tty.c_lflag);
if (enable)
- tty.c_lflag |= ECHO;
- else
- tty.c_lflag &= ~ECHO;
+ tty.c_lflag |= ECHO | ICANON;
+ else {
+ tty.c_lflag &= ~(ECHO | ICANON);
+ tty.c_cc[VMIN] = tty.c_cc[VTIME] = 0;
+ }
ret = tcsetattr(fd, TCSANOW, &tty);
if (ret != 0) {
return retval;
}
+static int g_exit;
+
static void signal_handler(int sig)
{
- enable_echo(1);
+ g_exit = 1;
signal(sig, SIG_DFL);
- raise(sig);
}
/* ?0SA 00DU, ?1CB RLDU */
uint8_t data[0][3];
};
+static uint8_t *import_gmv(FILE *f, long size, int *frame_count)
+{
+ struct gmv_tas *gmv;
+ uint8_t *out;
+ int ret;
+ int i;
+
+ if (size < (long)sizeof(*gmv)) {
+ fprintf(stderr, "bad gmv size: %ld\n", size);
+ return NULL;
+ }
+
+ gmv = malloc(size);
+ if (gmv == NULL) {
+ fprintf(stderr, "OOM?\n");
+ return NULL;
+ }
+ ret = fread(gmv, 1, size, f);
+ if (ret != size) {
+ fprintf(stderr, "fread %d/%ld: ", ret, size);
+ perror("");
+ return NULL;
+ }
+
+ *frame_count = (size - sizeof(*gmv)) / sizeof(gmv->data[0]);
+
+ /* check the GMV.. */
+ if (*frame_count <= 0 || size != sizeof(*gmv) + *frame_count * 3) {
+ fprintf(stderr, "broken gmv? frames=%d\n", *frame_count);
+ return NULL;
+ }
+
+ if (strncmp(gmv->sig, "Gens Movie TEST", 15) != 0) {
+ fprintf(stderr, "bad GMV sig\n");
+ return NULL;
+ }
+ if (gmv->ctrl1 != '3') {
+ fprintf(stderr, "unhandled controlled config: '%c'\n", gmv->ctrl1);
+ //return NULL;
+ }
+ if (gmv->ver >= 'A') {
+ if (gmv->flags & 0x40) {
+ fprintf(stderr, "unhandled flag: movie requires a savestate\n");
+ return NULL;
+ }
+ if (gmv->flags & 0x20) {
+ fprintf(stderr, "unhandled flag: 3-player movie\n");
+ return NULL;
+ }
+ if (gmv->flags & ~0x80) {
+ //fprintf(stderr, "unhandled flag(s): %04x\n", gmv->flags);
+ //return 1;
+ }
+ }
+ gmv->name[39] = 0;
+ printf("loaded GMV: %s\n", gmv->name);
+ printf("%d frames, %u rerecords\n",
+ *frame_count, gmv->rerecord_count);
+
+ out = malloc(*frame_count * sizeof(out[0]));
+ if (out == NULL) {
+ fprintf(stderr, "OOM?\n");
+ return NULL;
+ }
+
+ for (i = 0; i < *frame_count; i++) {
+ out[i] = gmv->data[i][0];
+
+ if (gmv->data[i][1] != 0xff || gmv->data[i][2] != 0xff)
+ {
+ fprintf(stderr, "f %d: unhandled byte(s) %02x %02x\n",
+ i, gmv->data[i][1], gmv->data[i][2]);
+ }
+ }
+
+ return out;
+}
+
+static int do_bkm_char(char c, char expect, uint8_t *val, int bit)
+{
+ if (c == expect) {
+ *val &= ~(1 << bit);
+ return 0;
+ }
+ if (c == '.')
+ return 0;
+
+ fprintf(stderr, "unexpected bkm char: '%c' instead of '%c'\n",
+ c, expect);
+ return 1;
+}
+
+static uint8_t *import_bkm(FILE *f, int *frame_count)
+{
+ uint8_t *out = NULL, val;
+ int count = 0;
+ int alloc = 0;
+ int line = 0;
+ char buf[256];
+ const char *r;
+ char *p;
+ int i;
+
+ while ((p = fgets(buf, sizeof(buf), f)) != NULL) {
+ line++;
+ if (p[0] != '|')
+ continue;
+
+ if (strlen(p) < 30)
+ goto unhandled_line;
+ if (p[30] != '\r' && p[30] != '\n')
+ goto unhandled_line;
+ p[30] = 0;
+
+ if (count >= alloc) {
+ alloc = alloc * 2 + 64;
+ out = realloc(out, alloc * sizeof(out[0]));
+ if (out == NULL) {
+ fprintf(stderr, "OOM?\n");
+ return NULL;
+ }
+ }
+
+ val = 0xff;
+
+ if (strncmp(p, "|.|", 3) != 0)
+ goto unhandled_line;
+ p += 3;
+
+ const char ref[] = "UDLRABCS";
+ for (r = ref, i = 0; *r != 0; p++, r++, i++) {
+ if (do_bkm_char(*p, *r, &val, i))
+ goto unhandled_line;
+ }
+
+ if (strcmp(p, "....|............||") != 0)
+ goto unhandled_line;
+
+ out[count++] = val;
+ continue;
+
+unhandled_line:
+ fprintf(stderr, "unhandled bkm line %d: '%s'\n", line, buf);
+ return NULL;
+ }
+
+ printf("loaded bkm, %d frames\n", count);
+ *frame_count = count;
+ return out;
+}
+
+static int write_bkm_frame(FILE *f, const uint8_t *data)
+{
+ /* ?0SA 00DU, ?1CB RLDU */
+ static const char ref[] = "UDLRABCSXYZM";
+ static const char bits[] = { 0,1,2,3, 12,4,5,13, 16,16,16,16 };
+ uint32_t idata[2];
+ int p, i;
+
+ if (f == NULL) {
+ fprintf(stderr, "%s called without outfile\n", __func__);
+ goto out;
+ }
+
+ idata[0] = 0x10000 | (data[0] << 8) | data[1];
+ idata[1] = ~0;
+
+ fprintf(f, "|.|");
+ for (p = 0; p < 2; p++) {
+ for (i = 0; i < 12; i++)
+ fprintf(f, "%c", (idata[p] & (1 << bits[i])) ? '.' : ref[i]);
+ fprintf(f, "|");
+ }
+ fprintf(f, "|\n");
+
+out:
+ return 2;
+}
+
+static int tas_data_to_teensy(uint8_t b, uint8_t *data, FILE *logf)
+{
+ uint8_t t;
+
+ /* SCBA RLDU */
+ /* v */
+ /* ?0SA 00DU, ?1CB RLDU */
+ data[0] = (b & 0x13) | ((b >> 2) & 0x20);
+ data[1] = (b & 0x0f) | ((b >> 1) & 0x30);
+
+ if (logf != NULL) {
+ fwrite(&data[0], 1, 1, logf);
+ t = data[1] | 0x40; // expected TH
+ fwrite(&t, 1, 1, logf);
+ }
+
+ return 2;
+}
+
static int submit_urb(int fd, struct usbdevfs_urb *urb, int ep,
void *buf, size_t buf_size)
{
int evdev_fd_cnt = 0;
int evdev_support;
int wait_device = 0;
- int dbg_in_sent = 0;
- int data_in_sent = 0;
+ int pending_urbs = 0;
fd_set rfds, wfds;
- struct gmv_tas *gmv = NULL;
const char *tasfn = NULL;
+ const char *outfn = NULL;
+ const char *logfn = NULL;
+ uint8_t *tas_data = NULL;
+ int use_vsync = 0; // frame increment on vsync
int tas_skip = 0;
int enable_sent = 0;
+ int abort_sent = 0;
int frame_count = 0;
int frames_sent = 0;
char buf_dbg[64 + 1];
struct tas_pkt pkt_out;
struct timeval *timeout = NULL;
struct timeval tout;
- int i, ret;
+ FILE *outf = NULL;
+ FILE *logf = NULL;
+ int i, ret = -1;
int fd;
for (i = 1; i < argc; i++) {
missing_arg(i);
tasfn = argv[i];
continue;
+ case 'w':
+ i++;
+ if (argv[i] == NULL)
+ missing_arg(i);
+ outfn = argv[i];
+ continue;
+ case 'l':
+ i++;
+ if (argv[i] == NULL)
+ missing_arg(i);
+ logfn = argv[i];
+ continue;
case 's':
i++;
if (argv[i] == NULL)
missing_arg(i);
tas_skip = atoi(argv[i]);
continue;
+ case 'v':
+ use_vsync = 1;
+ continue;
default:
fprintf(stderr, "bad arg: %s\n", argv[i]);
return 1;
}
}
+
+ /* remaining args are evdev filenames */
if (evdev_fd_cnt >= ARRAY_SIZE(evdev_fds)) {
fprintf(stderr, "too many evdevs\n");
break;
}
if (tasfn != NULL) {
+ const char *ext;
long size;
FILE *f;
-
+
f = fopen(tasfn, "rb");
if (f == NULL) {
fprintf(stderr, "fopen %s: ", tasfn);
fseek(f, 0, SEEK_END);
size = ftell(f);
fseek(f, 0, SEEK_SET);
- if (size < (long)sizeof(*gmv)) {
- fprintf(stderr, "bad gmv size: %ld\n", size);
- return 1;
- }
- gmv = malloc(size);
- if (gmv == NULL) {
- fprintf(stderr, "OOM?\n");
+ if (size <= 0) {
+ fprintf(stderr, "bad size: %ld\n", size);
return 1;
}
- ret = fread(gmv, 1, size, f);
- if (ret != size) {
- fprintf(stderr, "fread %d/%ld: ", ret, size);
- perror("");
- return 1;
- }
- fclose(f);
- frame_count = (size - sizeof(*gmv)) / sizeof(gmv->data[0]);
- /* check the GMV.. */
- if (frame_count <= 0 || size != sizeof(*gmv) + frame_count * 3) {
- fprintf(stderr, "broken gmv? frames=%d\n", frame_count);
+ ext = strrchr(tasfn, '.');
+ if (ext == NULL)
+ ext = tasfn;
+ else
+ ext++;
+
+ if (strcasecmp(ext, "gmv") == 0)
+ tas_data = import_gmv(f, size, &frame_count);
+ else if (strcasecmp(ext, "bkm") == 0)
+ tas_data = import_bkm(f, &frame_count);
+ else {
+ fprintf(stderr, "unknown movie type: '%s'\n", ext);
return 1;
}
+ fclose(f);
- if (strncmp(gmv->sig, "Gens Movie TEST", 15) != 0) {
- fprintf(stderr, "bad GMV sig\n");
+ if (tas_data == NULL) {
+ fprintf(stderr, "failed fo parse %s\n", tasfn);
return 1;
}
- if (gmv->ctrl1 != '3') {
- fprintf(stderr, "unhandled controlled config: '%c'\n", gmv->ctrl1);
- //return 1;
- }
- if (gmv->ver >= 'A') {
- if (gmv->flags & 0x40) {
- fprintf(stderr, "unhandled flag: movie requires a savestate\n");
- return 1;
- }
- if (gmv->flags & 0x20) {
- fprintf(stderr, "unhandled flag: 3-player movie\n");
- return 1;
- }
- if (gmv->flags & ~0x80) {
- fprintf(stderr, "unhandled flag(s): %04x\n", gmv->flags);
- //return 1;
- }
- }
- gmv->name[39] = 0;
- printf("loaded GMV: %s\n", gmv->name);
- printf("%d frames, %u rerecords\n",
- frame_count, gmv->rerecord_count);
if (tas_skip != 0) {
if (tas_skip >= frame_count || tas_skip <= -frame_count) {
}
if (tas_skip > 0) {
frame_count -= tas_skip;
- memmove(&gmv->data[0], &gmv->data[tas_skip],
- sizeof(gmv->data[0]) * frame_count);
+ memmove(&tas_data[0], &tas_data[tas_skip],
+ sizeof(tas_data[0]) * frame_count);
}
else {
- gmv = realloc(gmv, sizeof(*gmv)
- + (frame_count - tas_skip) * sizeof(gmv->data[0]));
- if (gmv == NULL) {
+ tas_data = realloc(tas_data,
+ (frame_count - tas_skip) * sizeof(tas_data[0]));
+ if (tas_data == NULL) {
fprintf(stderr, "OOM?\n");
return 1;
}
- memmove(&gmv->data[-tas_skip], &gmv->data[0],
- sizeof(gmv->data[0]) * frame_count);
- memset(&gmv->data[0], 0xff, sizeof(gmv->data[0]) * -tas_skip);
+ memmove(&tas_data[-tas_skip], &tas_data[0],
+ sizeof(tas_data[0]) * frame_count);
+ memset(&tas_data[0], 0xff, sizeof(tas_data[0]) * -tas_skip);
frame_count -= tas_skip;
}
}
}
+ if (outfn != NULL) {
+ outf = fopen(outfn, "w");
+ if (outf == NULL) {
+ fprintf(stderr, "fopen %s: ", outfn);
+ perror("");
+ return 1;
+ }
+ }
+
+ if (logfn != NULL) {
+ logf = fopen(logfn, "wb");
+ if (logf == NULL) {
+ fprintf(stderr, "fopen %s: ", logfn);
+ perror("");
+ return 1;
+ }
+ }
+
enable_echo(0);
signal(SIGINT, signal_handler);
dev.fd = -1;
- while (1)
+ while (!g_exit || (pending_urbs & (1 << URB_DATA_OUT)))
{
if (dev.fd == -1) {
ret = find_device(&dev, 0x16C0, 0x0486);
}
wait_device = 0;
- data_in_sent = 0;
- dbg_in_sent = 0;
+ pending_urbs = 0;
enable_sent = 0;
frames_sent = 0;
timeout = &tout;
}
- if (!data_in_sent) {
+ if (!(pending_urbs & (1 << URB_DATA_IN))) {
memset(&pkt_in, 0, sizeof(pkt_in));
ret = submit_urb(dev.fd, &urb[URB_DATA_IN], dev.ifaces[0].ep_in,
&pkt_in, sizeof(pkt_in));
break;
}
- data_in_sent = 1;
+ pending_urbs |= 1 << URB_DATA_IN;
}
- if (!dbg_in_sent) {
+ if (!(pending_urbs & (1 << URB_DBG_IN))) {
ret = submit_urb(dev.fd, &urb[URB_DBG_IN], dev.ifaces[1].ep_in,
buf_dbg, sizeof(buf_dbg) - 1);
if (ret != 0) {
break;
}
- dbg_in_sent = 1;
+ pending_urbs |= 1 << URB_DBG_IN;
}
FD_ZERO(&rfds);
+ FD_SET(STDIN_FILENO, &rfds);
for (i = 0; i < evdev_fd_cnt; i++)
FD_SET(evdev_fds[i], &rfds);
}
timeout = NULL;
+ /* sometihng form stdin? */
+ if (FD_ISSET(STDIN_FILENO, &rfds)) {
+ char c = 0;
+ ret = read(STDIN_FILENO, &c, 1);
+ if (ret <= 0) {
+ perror("read stdin");
+ break;
+ }
+
+ switch (c) {
+ case 'r':
+ enable_sent = 0;
+ if (logf != NULL)
+ rewind(logf);
+ break;
+ }
+ }
+
/* something from input devices? */
fixed_input_changed = 0;
for (i = 0; i < evdev_fd_cnt; i++) {
/* something from USB? */
if (FD_ISSET(dev.fd, &wfds))
{
+ unsigned int which_urb;
+
reaped_urb = NULL;
ret = ioctl(dev.fd, USBDEVFS_REAPURB, &reaped_urb);
if (ret != 0) {
perror("USBDEVFS_REAPURB");
break;
}
+ which_urb = reaped_urb - urb;
+ if (which_urb < ARRAY_SIZE(urb))
+ pending_urbs &= ~(1 << which_urb);
+ else {
+ fprintf(stderr, "reaped unknown urb: %p #%u",
+ reaped_urb, which_urb);
+ }
if (reaped_urb != NULL && reaped_urb->status != 0) {
errno = -reaped_urb->status;
- if ((unsigned long)(reaped_urb - urb) < ARRAY_SIZE(urb))
- fprintf(stderr, "urb #%zu: ", reaped_urb - urb);
- else
- fprintf(stderr, "unknown urb: ");
+ fprintf(stderr, "urb #%u: ", which_urb);
perror("");
if (reaped_urb->status == -EILSEQ) {
/* this is usually a sign of disconnect.. */
goto dev_close;
}
}
-
- if (reaped_urb == &urb[URB_DATA_IN]) {
+ else if (reaped_urb == &urb[URB_DATA_IN])
+ {
/* some request from teensy */
- int count;
- uint8_t b;
-
switch (pkt_in.type) {
case PKT_STREAM_REQ:
- printf("%d/%d\n", frames_sent, frame_count);
+ printf("req: %d/%d/%d\n", pkt_in.req.frame,
+ frames_sent, frame_count);
- for (i = 0; i < sizeof(pkt_out.data); i++) {
- pkt_out.data[i * 2 + 0] = 0x33;
- pkt_out.data[i * 2 + 1] = 0x3f;
- }
+ pkt_out.size = 0;
if (frames_sent < frame_count) {
- pkt_out.type = PKT_STREAM_DATA;
-
- count = frame_count - frames_sent;
- if (count > sizeof(pkt_out.data) / 2)
- count = sizeof(pkt_out.data) / 2;
- for (i = 0; i < count; i++) {
- /* SCBA RLDU */
- b = gmv->data[frames_sent][0];
-
- /* ?0SA 00DU, ?1CB RLDU */
- pkt_out.data[i * 2 + 0] = (b & 0x13) | ((b >> 2) & 0x20);
- pkt_out.data[i * 2 + 1] = (b & 0x0f) | ((b >> 1) & 0x30);
-
- if (gmv->data[frames_sent][1] != 0xff
- || gmv->data[frames_sent][2] != 0xff)
- {
- fprintf(stderr, "f %d: unhandled byte(s) %02x %02x\n",
- frames_sent, gmv->data[frames_sent][1],
- gmv->data[frames_sent][2]);
- }
+ pkt_out.type = PKT_STREAM_DATA_TO;
+
+ for (i = 0; i < sizeof(pkt_out.data); ) {
+ i += tas_data_to_teensy(tas_data[frames_sent],
+ pkt_out.data + i, logf);
frames_sent++;
+ if (frames_sent >= frame_count)
+ break;
}
+ pkt_out.size = i;
}
- else
+ else {
pkt_out.type = PKT_STREAM_END;
+ if (logf != NULL)
+ fflush(logf);
+ }
ret = submit_urb(dev.fd, &urb[URB_DATA_OUT],
dev.ifaces[0].ep_out, &pkt_out, sizeof(pkt_out));
if (ret != 0)
- perror("USBDEVFS_SUBMITURB URB_DATA_OUT PKT_STREAM_DATA");
+ perror("USBDEVFS_SUBMITURB PKT_STREAM_DATA_TO");
+ break;
+
+ case PKT_STREAM_DATA_FROM:
+ printf("f: %d\n", frame_count);
+ if (pkt_in.size == 0 || pkt_in.size > sizeof(pkt_out.data)) {
+ printf("host: got bad DATA_FROM size: %u\n", pkt_in.size);
+ break;
+ }
+ for (i = 0; i < pkt_in.size; ) {
+ i += write_bkm_frame(outf, pkt_in.data + i);
+ frame_count++;
+ }
break;
default:
printf("host: got unknown pkt type: %04x\n", pkt_in.type);
break;
}
-
- data_in_sent = 0;
}
- else if (reaped_urb == &urb[URB_DATA_OUT]) {
+ else if (reaped_urb == &urb[URB_DATA_OUT])
+ {
}
- else if (reaped_urb == &urb[URB_DBG_IN]) {
+ else if (reaped_urb == &urb[URB_DBG_IN])
+ {
/* debug text */
buf_dbg[reaped_urb->actual_length] = 0;
printf("%s", buf_dbg);
- dbg_in_sent = 0;
+
+ // continue receiving debug before sending out stuff
+ tout.tv_sec = 0;
+ tout.tv_usec = 1000;
+ timeout = &tout;
+ continue;
}
else {
fprintf(stderr, "reaped unknown urb? %p #%zu\n",
}
/* something to send? */
- if (gmv != NULL && !enable_sent) {
+ if (pending_urbs & (1 << URB_DATA_OUT))
+ // can't do that yet
+ continue;
+
+ if ((tas_data != NULL || outf != NULL) && !enable_sent) {
memset(&pkt_out, 0, sizeof(pkt_out));
pkt_out.type = PKT_STREAM_ENABLE;
+ pkt_out.enable.stream_to = (tas_data != NULL);
+ pkt_out.enable.stream_from = (outf != NULL);
+ pkt_out.enable.use_readinc = !use_vsync;
+
ret = submit_urb(dev.fd, &urb[URB_DATA_OUT], dev.ifaces[0].ep_out,
&pkt_out, sizeof(pkt_out));
if (ret != 0) {
perror("USBDEVFS_SUBMITURB PKT_STREAM_ENABLE");
continue;
}
+ pending_urbs |= 1 << URB_DATA_OUT;
enable_sent = 1;
+ frames_sent = 0;
+ continue;
}
- if (gmv == NULL && fixed_input_changed) {
+ if (tas_data == NULL && fixed_input_changed) {
memset(&pkt_out, 0, sizeof(pkt_out));
pkt_out.type = PKT_FIXED_STATE;
memcpy(pkt_out.data, fixed_input_state, sizeof(fixed_input_state));
ret = submit_urb(dev.fd, &urb[URB_DATA_OUT], dev.ifaces[0].ep_out,
&pkt_out, sizeof(pkt_out));
if (ret != 0) {
- perror("USBDEVFS_SUBMITURB URB_DATA_OUT");
+ perror("USBDEVFS_SUBMITURB PKT_FIXED_STATE");
break;
}
+ pending_urbs |= 1 << URB_DATA_OUT;
+ continue;
+ }
+ if (g_exit && !abort_sent) {
+ memset(&pkt_out, 0, sizeof(pkt_out));
+ pkt_out.type = PKT_STREAM_ABORT;
+
+ ret = submit_urb(dev.fd, &urb[URB_DATA_OUT], dev.ifaces[0].ep_out,
+ &pkt_out, sizeof(pkt_out));
+ if (ret != 0) {
+ perror("USBDEVFS_SUBMITURB PKT_STREAM_ABORT");
+ break;
+ }
+ pending_urbs |= 1 << URB_DATA_OUT;
+ abort_sent = 1;
+ continue;
}
continue;
enable_echo(1);
+ if (outf != NULL)
+ fclose(outf);
+ if (logf != NULL)
+ fclose(logf);
+
+ if (dev.fd != -1) {
+ /* deal with pending URBs */
+ if (pending_urbs & (1 << URB_DATA_IN))
+ ioctl(dev.fd, USBDEVFS_DISCARDURB, &urb[URB_DATA_IN]);
+ if (pending_urbs & (1 << URB_DBG_IN))
+ ioctl(dev.fd, USBDEVFS_DISCARDURB, &urb[URB_DBG_IN]);
+ for (i = 0; i < URB_CNT; i++) {
+ if (pending_urbs & (1 << i)) {
+ ret = ioctl(dev.fd, USBDEVFS_REAPURB, &reaped_urb);
+ if (ret != 0)
+ perror("USBDEVFS_REAPURB");
+ }
+ }
+
+ close(dev.fd);
+ }
+
return ret;
}