Create & use new sr_usbtmc_dev_inst for Rigol DS driver.

[libsigrok.git] / device.c

diff --git a/device.c b/device.c
index cf2fd8781dcdfeebd5a9d82daa04bc6599b0e5df..0167a220cc390b289bbfd121e650c5a32f4cb74a 100644 (file)
--- a/device.c
+++ b/device.c
@@ -350,9 +350,34 @@ SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial)
        g_free(serial->serialcomm);
        g_free(serial);
 }
-
 #endif
 
+SR_PRIV struct sr_usbtmc_dev_inst *sr_usbtmc_dev_inst_new(const char *device)
+{
+       struct sr_usbtmc_dev_inst *usbtmc;
+
+       if (!device) {
+               sr_err("Device name required.");
+               return NULL;
+       }
+
+       if (!(usbtmc = g_try_malloc0(sizeof(struct sr_usbtmc_dev_inst)))) {
+               sr_err("USBTMC device instance malloc failed.");
+               return NULL;
+       }
+
+       usbtmc->device = g_strdup(device);
+       usbtmc->fd = -1;
+
+       return usbtmc;
+}
+
+SR_PRIV void sr_usbtmc_dev_inst_free(struct sr_usbtmc_dev_inst *usbtmc)
+{
+       g_free(usbtmc->device);
+       g_free(usbtmc);
+}
+
 /**
  * Get the list of devices/instances of the specified driver.
  *