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[Qemu-devel] [PATCH 3/3] USB serial device support
From: |
Jason Wessel |
Subject: |
[Qemu-devel] [PATCH 3/3] USB serial device support |
Date: |
Mon, 18 May 2009 10:00:28 -0500 |
Add in a workaround to allow the usb serial devices to work with the
usb pass through mechanism. The ioctl() to request an alternate
interface will always return < 0 for a usb-serial device based on the
kernel driver. This means there is no alternate interface end point.
This was fully tested with a pl2303 usb serial device.
Signed-off-by: Jason Wessel <address@hidden>
---
usb-linux.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/usb-linux.c b/usb-linux.c
index 70d7a1c..67e4acd 100644
--- a/usb-linux.c
+++ b/usb-linux.c
@@ -833,8 +833,7 @@ static int usb_linux_update_endp_table(USBHostDevice *s)
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
if (ret < 0) {
- perror("usb_linux_update_endp_table");
- return 1;
+ alt_interface = interface;
}
/* the current interface descriptor is the active interface
--
1.6.3.1.9.g95405b