Patchwork usb: increase buffer for USB control requests

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Submitter Christian Krause
Date Dec. 11, 2009, 10:35 p.m.
Message ID <20091211223509.GA9591@gondor.middle-earth.priv>
Download mbox | patch
Permalink /patch/40931/
State New
Headers show

Comments

Christian Krause - Dec. 11, 2009, 10:35 p.m.
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 <chkr@plauener.de>
---
 usb-linux.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Patch

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 {