From: Aurelien Jacobs <redacted>
Date: Tue, 4 Feb 2014 22:19:02 +0000 (+0100)
Subject: usb: remove unused sr_usb_find_usbtmc()
X-Git-Tag: libsigrok-0.3.0~151
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=2a0f6924d2c8f3b203560ba0086e9d297855677a;p=libsigrok.git

usb: remove unused sr_usb_find_usbtmc()
---

diff --git a/hardware/common/usb.c b/hardware/common/usb.c
index 8d4224d1..a4845c93 100644
--- a/hardware/common/usb.c
+++ b/hardware/common/usb.c
@@ -29,10 +29,6 @@
 #define CONN_USB_VIDPID  "^([0-9a-z]{4})\\.([0-9a-z]{4})$"
 #define CONN_USB_BUSADDR "^(\\d+)\\.(\\d+)$"
 
-/* Some USBTMC-specific enums, as defined in the USBTMC standard. */
-#define SUBCLASS_USBTMC 0x03
-#define USBTMC_USB488   0x01
-
 #define LOG_PREFIX "usb"
 
 /**
@@ -135,63 +131,6 @@ SR_PRIV GSList *sr_usb_find(libusb_context *usb_ctx, const char *conn)
 	return devices;
 }
 
-/**
- * Find USB devices supporting the USBTMC class
- *
- * @param usb_ctx libusb context to use while scanning.
- *
- * @return A GSList of struct sr_usb_dev_inst, with bus and address fields
- * indicating devices with USBTMC support.
- */
-SR_PRIV GSList *sr_usb_find_usbtmc(libusb_context *usb_ctx)
-{
-	struct sr_usb_dev_inst *usb;
-	struct libusb_device **devlist;
-	struct libusb_device_descriptor des;
-	struct libusb_config_descriptor *confdes;
-	const struct libusb_interface_descriptor *intfdes;
-	GSList *devices;
-	int confidx, intfidx, ret, i;
-
-	devices = NULL;
-	libusb_get_device_list(usb_ctx, &devlist);
-	for (i = 0; devlist[i]; i++) {
-		if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
-			sr_err("Failed to get device descriptor: %s.",
-			       libusb_error_name(ret));
-			continue;
-		}
-
-		for (confidx = 0; confidx < des.bNumConfigurations; confidx++) {
-			if (libusb_get_config_descriptor(devlist[i], confidx, &confdes) != 0) {
-				sr_err("Failed to get configuration descriptor.");
-				break;
-			}
-			for (intfidx = 0; intfidx < confdes->bNumInterfaces; intfidx++) {
-				intfdes = confdes->interface[intfidx].altsetting;
-				if (intfdes->bInterfaceClass != LIBUSB_CLASS_APPLICATION
-						|| intfdes->bInterfaceSubClass != SUBCLASS_USBTMC
-						|| intfdes->bInterfaceProtocol != USBTMC_USB488)
-					continue;
-				sr_dbg("Found USBTMC device (VID:PID = %04x:%04x, bus.address = "
-					   "%d.%d).", des.idVendor, des.idProduct,
-					   libusb_get_bus_number(devlist[i]),
-					   libusb_get_device_address(devlist[i]));
-
-				usb = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
-						libusb_get_device_address(devlist[i]), NULL);
-				devices = g_slist_append(devices, usb);
-			}
-			libusb_free_config_descriptor(confdes);
-		}
-	}
-	libusb_free_device_list(devlist, 1);
-
-	sr_dbg("Found %d device(s).", g_slist_length(devices));
-
-	return devices;
-}
-
 SR_PRIV int sr_usb_open(libusb_context *usb_ctx, struct sr_usb_dev_inst *usb)
 {
 	struct libusb_device **devlist;
diff --git a/libsigrok-internal.h b/libsigrok-internal.h
index 90e40342..54b23e32 100644
--- a/libsigrok-internal.h
+++ b/libsigrok-internal.h
@@ -244,7 +244,6 @@ SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi);
 /* USB-specific instances */
 SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
 		uint8_t address, struct libusb_device_handle *hdl);
-SR_PRIV GSList *sr_usb_find_usbtmc(libusb_context *usb_ctx);
 SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb);
 #endif