Messages in this thread Patch in this message | | | Date | Fri, 19 Nov 2010 14:01:14 -0800 | From | Greg KH <> | Subject | [43/66] USB: Change acm_iad_descriptor bFunctionProtocol to USB_CDC_ACM_PROTO_AT_V25TER |
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2.6.36-stable review patch. If anyone has any objections, please let us know.
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From: Praveena Nadahally <praveen.nadahally@stericsson.com>
commit 5c8db070b4480c43394680d9dfd2ddb06b97d2ae upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/usb/gadget/f_acm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 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 */ };
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