sr: add new driver API call: scan()

[libsigrok.git] / hardware / genericdmm / api.c

diff --git a/hardware/genericdmm/api.c b/hardware/genericdmm/api.c
index ca50a728f9ca13aefa57dd529a04c64071c1622e..4a5da74432a5e1b448756279ec824169340f0158 100644 (file)
--- a/hardware/genericdmm/api.c
+++ b/hardware/genericdmm/api.c
@@ -58,15 +58,22 @@ SR_PRIV libusb_context *genericdmm_usb_context = NULL;
 
 static int hw_init(void)
 {
-       struct sr_dev_inst *sdi;
-       struct context *ctx;
-       int devcnt = 0;
 
        if (libusb_init(&genericdmm_usb_context) != 0) {
                sr_err("genericdmm: Failed to initialize USB.");
-               return 0;
+               return SR_ERR;
        }
 
+
+       return SR_OK;
+}
+
+static int hw_scan(void)
+{
+       struct sr_dev_inst *sdi;
+       struct context *ctx;
+       int devcnt = 0;
+
        if (!(ctx = g_try_malloc0(sizeof(struct context)))) {
                sr_err("genericdmm: ctx malloc failed.");
                return 0;
@@ -610,6 +617,7 @@ SR_PRIV struct sr_dev_driver genericdmm_driver_info = {
        .api_version = 1,
        .init = hw_init,
        .cleanup = hw_cleanup,
+       .scan = hw_scan,
        .dev_open = hw_dev_open,
        .dev_close = hw_dev_close,
        .dev_info_get = hw_dev_info_get,