From e4ce146fefe7cfd475b9d8fdec1101b188b746db Mon Sep 17 00:00:00 2001
From: Uwe Hermann <uwe@hermann-uwe.de>
Date: Sat, 21 Nov 2015 20:27:25 +0100
Subject: [PATCH] sr_usb_find(): Increase the 'bus' limit to 255.

On some systems it can happen that the USB 'bus' number is a lot larger
than 64, but sr_usb_find() currently errors out if it is > 64.

Example:
Bus 250 Device 006: ID 1ab1:04ce 1ab1 DS1000Z Series[...]

Increase that limit so that the code will work everywhere. This bus number
is queried via libusb_get_bus_number() which returns an uint8_t, so we're
limiting to 255 here.

Thanks to 'ssi' on IRC for reporting the issue.
---
 src/usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/usb.c b/src/usb.c
index ba56e864..02510cae 100644
--- a/src/usb.c
+++ b/src/usb.c
@@ -359,7 +359,7 @@ SR_PRIV GSList *sr_usb_find(libusb_context *usb_ctx, const char *conn)
 		return NULL;
 	}
 
-	if (bus > 64) {
+	if (bus > 255) {
 		sr_err("Invalid bus specified: %d.", bus);
 		return NULL;
 	}