56eef2c53a
git-svn-id: https://svn.code.sf.net/p/gphoto/code/trunk/libgphoto2@14531 67ed7778-7388-44ab-90cf-0a291f65f57c
84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <gphoto2/gphoto2-camera.h>
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#include "samples.h"
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static GPPortInfoList *portinfolist = NULL;
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static CameraAbilitiesList *abilities = NULL;
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/*
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* This detects all currently attached cameras and returns
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* them in a list. It avoids the generic usb: entry.
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*
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* This function does not open nor initialize the cameras yet.
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*/
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int
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sample_autodetect (CameraList *list, GPContext *context) {
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gp_list_reset (list);
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return gp_camera_autodetect (list, context);
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}
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/*
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* This function opens a camera depending on the specified model and port.
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*/
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int
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sample_open_camera (Camera ** camera, const char *model, const char *port, GPContext *context) {
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int ret, m, p;
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CameraAbilities a;
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GPPortInfo pi;
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ret = gp_camera_new (camera);
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if (ret < GP_OK) return ret;
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if (!abilities) {
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/* Load all the camera drivers we have... */
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ret = gp_abilities_list_new (&abilities);
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if (ret < GP_OK) return ret;
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ret = gp_abilities_list_load (abilities, context);
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if (ret < GP_OK) return ret;
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}
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/* First lookup the model / driver */
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m = gp_abilities_list_lookup_model (abilities, model);
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if (m < GP_OK) return ret;
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ret = gp_abilities_list_get_abilities (abilities, m, &a);
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if (ret < GP_OK) return ret;
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ret = gp_camera_set_abilities (*camera, a);
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if (ret < GP_OK) return ret;
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if (!portinfolist) {
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/* Load all the port drivers we have... */
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ret = gp_port_info_list_new (&portinfolist);
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if (ret < GP_OK) return ret;
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ret = gp_port_info_list_load (portinfolist);
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if (ret < 0) return ret;
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ret = gp_port_info_list_count (portinfolist);
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if (ret < 0) return ret;
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}
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/* Then associate the camera with the specified port */
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p = gp_port_info_list_lookup_path (portinfolist, port);
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switch (p) {
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case GP_ERROR_UNKNOWN_PORT:
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fprintf (stderr, "The port you specified "
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"('%s') can not be found. Please "
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"specify one of the ports found by "
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"'gphoto2 --list-ports' and make "
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"sure the spelling is correct "
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"(i.e. with prefix 'serial:' or 'usb:').",
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port);
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break;
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default:
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break;
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}
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if (p < GP_OK) return p;
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ret = gp_port_info_list_get_info (portinfolist, p, &pi);
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if (ret < GP_OK) return ret;
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ret = gp_camera_set_port_info (*camera, pi);
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if (ret < GP_OK) return ret;
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return GP_OK;
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}
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