autogen.sh: aclocal support for Windows XP/Vista/7.

[libsigrok.git] / device.c

diff --git a/device.c b/device.c
index 9b68eb0b28a6db3cb34b76524ba151ac004f57a4..19fd6a14afba39af557889256e4b7182cae2bd8b 100644 (file)
--- a/device.c
+++ b/device.c
@@ -57,7 +57,7 @@ static GSList *devices = NULL;
  *
  * @return SR_OK upon success, SR_ERR upon errors.
  */
-int sr_device_scan(void)
+SR_API int sr_device_scan(void)
 {
        GSList *plugins, *l;
        struct sr_device_plugin *plugin;
@@ -91,7 +91,7 @@ int sr_device_scan(void)
  *
  * @return The list (GSList) of detected devices, or NULL if none were found.
  */
-GSList *sr_device_list(void)
+SR_API GSList *sr_device_list(void)
 {
        if (!devices)
                sr_device_scan();
@@ -119,8 +119,8 @@ GSList *sr_device_list(void)
  *
  * @return Pointer to the newly allocated device, or NULL upon errors.
  */
-struct sr_device *sr_device_new(const struct sr_device_plugin *plugin,
-                               int plugin_index)
+SR_API struct sr_device *sr_device_new(const struct sr_device_plugin *plugin,
+                                      int plugin_index)
 {
        struct sr_device *device;
 
@@ -156,7 +156,7 @@ struct sr_device *sr_device_new(const struct sr_device_plugin *plugin,
  * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments.
  *         If something other than SR_OK is returned, 'device' is unchanged.
  */
-int sr_device_clear(struct sr_device *device)
+SR_API int sr_device_clear(struct sr_device *device)
 {
        unsigned int pnum;
 
@@ -188,7 +188,7 @@ int sr_device_clear(struct sr_device *device)
  *         upon other errors.
  *         If something other than SR_OK is returned, 'device' is unchanged.
  */
-int sr_device_probe_clear(struct sr_device *device, int probenum)
+SR_API int sr_device_probe_clear(struct sr_device *device, int probenum)
 {
        struct sr_probe *p;
 
@@ -237,7 +237,7 @@ int sr_device_probe_clear(struct sr_device *device, int probenum)
  *         or SR_ERR_ARG upon invalid arguments.
  *         If something other than SR_OK is returned, 'device' is unchanged.
  */
-int sr_device_probe_add(struct sr_device *device, const char *name)
+SR_API int sr_device_probe_add(struct sr_device *device, const char *name)
 {
        struct sr_probe *p;
        int probenum;
@@ -285,8 +285,8 @@ int sr_device_probe_add(struct sr_device *device, const char *name)
  * @return A pointer to the requested probe's 'struct sr_probe', or NULL
  *         if the probe could not be found.
  */
-struct sr_probe *sr_device_probe_find(const struct sr_device *device,
-                                     int probenum)
+SR_API struct sr_probe *sr_device_probe_find(const struct sr_device *device,
+                                            int probenum)
 {
        GSList *l;
        struct sr_probe *p, *found_probe;
@@ -328,8 +328,8 @@ struct sr_probe *sr_device_probe_find(const struct sr_device *device,
  *         upon other errors.
  *         If something other than SR_OK is returned, 'device' is unchanged.
  */
-int sr_device_probe_name(struct sr_device *device, int probenum,
-                        const char *name)
+SR_API int sr_device_probe_name(struct sr_device *device, int probenum,
+                               const char *name)
 {
        struct sr_probe *p;
 
@@ -364,7 +364,7 @@ int sr_device_probe_name(struct sr_device *device, int probenum,
  * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments.
  *         If something other than SR_OK is returned, 'device' is unchanged.
  */
-int sr_device_trigger_clear(struct sr_device *device)
+SR_API int sr_device_trigger_clear(struct sr_device *device)
 {
        struct sr_probe *p;
        unsigned int pnum; /* TODO: uint16_t? */
@@ -407,8 +407,8 @@ int sr_device_trigger_clear(struct sr_device *device)
  *         upon other errors.
  *         If something other than SR_OK is returned, 'device' is unchanged.
  */
-int sr_device_trigger_set(struct sr_device *device, int probenum,
-                         const char *trigger)
+SR_API int sr_device_trigger_set(struct sr_device *device, int probenum,
+                                const char *trigger)
 {
        struct sr_probe *p;
 
@@ -449,7 +449,7 @@ int sr_device_trigger_set(struct sr_device *device, int probenum,
  *         FALSE is also returned upon invalid input parameters or other
  *         error conditions.
  */
-gboolean sr_device_has_hwcap(const struct sr_device *device, int hwcap)
+SR_API gboolean sr_device_has_hwcap(const struct sr_device *device, int hwcap)
 {
        int *capabilities, i;
 
@@ -481,3 +481,32 @@ gboolean sr_device_has_hwcap(const struct sr_device *device, int hwcap)
 
        return FALSE;
 }
+
+/**
+ * Returns information about the given device.
+ *
+ * @param device Pointer to the device to be checked. Must not be NULL.
+ *               The device's 'plugin' field must not be NULL either.
+ * @param id     The type of information.
+ * @param data   The return value. Must not be NULL.
+ *
+ * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or SR_ERR
+ *         upon other errors.
+ */
+int sr_device_get_info(const struct sr_device *device, int id,
+                                          const void **data)
+{
+       if ((device == NULL) || (device->plugin == NULL))
+               return SR_ERR_ARG;
+
+       if (data == NULL)
+               return SR_ERR_ARG;
+
+       *data = device->plugin->get_device_info(device->plugin_index, id);
+
+       if (*data == NULL)
+               return SR_ERR;
+
+       return SR_OK;
+}
+