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annotate controlmsg.c @ 10:078dc69945ad

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working: libjpeg-turbo support, handle fb and monitor with different size
author Peter Meerwald <pmeerw@pmeerw.net>
date Sun, 15 May 2011 17:48:57 +0200
parents 71b9540bdd23
children
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1 /* $Id: usbreplay.c,v 1.7 2004/02/07 17:02:32 bd Exp $ */
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2 /* Use only with the Hauppauge WinTV PVR usb2, VID/PID 2040/2900. */
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3 /* No commercial affiliation, warranty, copyright, party invitation, */
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4 /* fitness or non-fitness, implied or otherwise, is claimed by this comment. */
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5 /* Compile with -lusb, then put it where capture.pl will find it. */
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6
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7 #include <usb.h>
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8 #include <stdlib.h>
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9 #include <stdio.h>
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10 #include <string.h>
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11 #include <fcntl.h>
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12
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13 struct usb_device *find_first_pvr() {
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14 struct usb_bus *bus;
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15 struct usb_device *dev;
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16
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17 usb_init();
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18 usb_find_busses();
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19 usb_find_devices();
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20
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21 for (bus = usb_busses; bus; bus = bus->next) {
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22 for (dev = bus->devices; dev; dev = dev->next) {
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23 if (dev->descriptor.idVendor == 0x04e8 &&
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24 dev->descriptor.idProduct == 0x2027) {
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25 fprintf(stderr, "Samsung photoframe in Mass Storage mode found ...\n");
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26 return dev;
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27 }
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28 else if (dev->descriptor.idVendor == 0x04e8 &&
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29 dev->descriptor.idProduct == 0x2028){
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30 fprintf(stderr, "Samsung photoframe in Custom Product mode found ...\n");
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31 return NULL;
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32 }
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33 }
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34 }
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35 fprintf(stderr, "No Samsung device found ...\n");
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36 return NULL;
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37 }
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38
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39
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40 int replay() {
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41 int res = -1;
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42 char buf[256];
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43 usb_dev_handle *udev;
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44 struct usb_device *dev = NULL;
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45 int numeps = 0;
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46
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47 dev = find_first_pvr();
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48 if (dev == NULL) {
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49 fprintf(stderr, "Since no Samsung device in Mass Storage mode found, not going to do anything\n");
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50 return 0;
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51 }
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52 udev = usb_open(dev);
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53
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54 setuid(getuid());
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55
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56 strcpy(buf, "** no string **");
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57 res = usb_get_string_simple(udev, dev->descriptor.iManufacturer, buf, sizeof(buf));
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58 fprintf(stderr, "usb_get_string_simple => %d, %s\n", res, buf);
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59
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60 char blah[254];
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61 memset(blah,0,254);
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62
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63 res = usb_control_msg(udev, USB_TYPE_STANDARD | USB_ENDPOINT_IN, USB_REQ_GET_DESCRIPTOR, 0xfe, 0xfe, blah, 0xfe, 1000);
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64 printf("usb_control_msg() = %d\n",res);
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65
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66 fprintf(stderr, "Just switched to 0x2028 Custom Product mode\n");
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67 return 0;
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68 }
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69
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70
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71 int main(int argc, char *argv[]) {
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72 return replay();
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73 }

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