From 10ebd8556b7990499c896a550e3d416b444211e6 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 02:23:07 +0000
Subject: [PATCH] add led

---
 kernel/drivers/usb/class/usbtmc.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/drivers/usb/class/usbtmc.c b/kernel/drivers/usb/class/usbtmc.c
index 49f59d5..76ff182 100644
--- a/kernel/drivers/usb/class/usbtmc.c
+++ b/kernel/drivers/usb/class/usbtmc.c
@@ -1898,6 +1898,8 @@
 
 	if (request.req.wLength > USBTMC_BUFSIZE)
 		return -EMSGSIZE;
+	if (request.req.wLength == 0)	/* Length-0 requests are never IN */
+		request.req.bRequestType &= ~USB_DIR_IN;
 
 	is_in = request.req.bRequestType & USB_DIR_IN;
 

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