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[Qemu-devel] [PATCH] usb: increase buffer for USB control requests

From: Christian Krause
Subject: [Qemu-devel] [PATCH] usb: increase buffer for USB control requests
Date: Fri, 11 Dec 2009 23:35:09 +0100
User-agent: Mutt/1.5.19 (2009-01-05)

The WLAN USB stick ZyXEL NWD271N (0586:3417) uses very large
usb control transfers of more than 2048 bytes which won't fit
into the buffer of the ctrl_struct. This results in an error message
"husb: ctrl buffer too small" and a non-working device.
Increasing the buffer size to 8192 seems to be a safe choice.

Signed-off-by: Christian Krause <address@hidden>
 usb-linux.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/usb-linux.c b/usb-linux.c
index 285ac22..d205bd3 100644
--- a/usb-linux.c
+++ b/usb-linux.c
@@ -113,7 +113,7 @@ struct ctrl_struct {
     uint16_t offset;
     uint8_t  state;
     struct   usb_ctrlrequest req;
-    uint8_t  buffer[2048];
+    uint8_t  buffer[8192];
 struct USBAutoFilter {

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