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authorPraveena Nadahally <praveen.nadahally@stericsson.com>2010-09-10 23:05:03 +0530
committerGreg Kroah-Hartman <gregkh@suse.de>2010-10-22 10:21:35 -0700
commit5c8db070b4480c43394680d9dfd2ddb06b97d2ae (patch)
treeba32e7a007d07cd91819db0ff4c51030beac5b4e /drivers/usb/gadget
parent92d3489ec58b5897a407b07ad9954497a119d3d0 (diff)
USB: Change acm_iad_descriptor bFunctionProtocol to USB_CDC_ACM_PROTO_AT_V25TER
The protocol code is set 00 in IAD and it's set to 01 in ACM control interface descriptor in f_acm.c file. Due to this, windows is unable to install the modem(ACM) driver based on class-subclass-protocol matching. This patch corrects the protocol code in ACM IAD to the same as in acm_control_interface_desc protocol code. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Praveena Nadahally <praveen.nadahally@stericsson.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r--drivers/usb/gadget/f_acm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c
index d47a123f15a..bd6226cbae8 100644
--- a/drivers/usb/gadget/f_acm.c
+++ b/drivers/usb/gadget/f_acm.c
@@ -111,7 +111,7 @@ acm_iad_descriptor = {
.bInterfaceCount = 2, // control + data
.bFunctionClass = USB_CLASS_COMM,
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
- .bFunctionProtocol = USB_CDC_PROTO_NONE,
+ .bFunctionProtocol = USB_CDC_ACM_PROTO_AT_V25TER,
/* .iFunction = DYNAMIC */
};