On Mon, Jan 11, 2010 at 09:30:00AM +0100, Gernot Hillier wrote:
> From: Gernot Hillier <gernot@xxxxxxxxxx>
>
> As suggested by Matthias Urlichs, this patch adds a somehow generic
> mechanism for special handling of devices which don't support all
> bits expected by this driver.
>
> The blacklisting code is heavily stolen from sierra.c, but extended to
> support different special cases.
>
> For now, one case is implemented (OPTION_BLACKLIST_SENDSETUP),
> targeted at the 4G W14 device: devices which don't understand the
> setting of RTS/DTR in option_send_setup() causing a USB timeout of
> 5 s in any userspace open() which leads to errors in most userspace
> applications.
>
> In addition, I prepared another case for devices with interfaces which
> shall not be accessed by this driver (targeted at the D-Link DWM 652).
>
> However, OPTION_BLACKLIST_RESERVED_IF is not fully implemented yet as
> I have no device to test this. Anyone volunteering to help here?
> If not, I'll contact the guys who added D-Link DWM 652 support soon.
>
> Signed-off-by: Gernot Hillier <gernot@xxxxxxxxxx>
>
> Index: linux-next/drivers/usb/serial/option.c
> ===================================================================
> --- linux-next.orig/drivers/usb/serial/option.c 2010-01-09 10:24:57.000000000 +0100
> +++ linux-next/drivers/usb/serial/option.c 2010-01-09 10:25:00.000000000 +0100
> @@ -344,6 +344,19 @@ static int option_resume(struct usb_ser
> #define HAIER_VENDOR_ID 0x201e
> #define HAIER_PRODUCT_CE100 0x2009
>
> +/* some devices interfaces need special handling due to a number of reasons */
> +typedef enum {
> + OPTION_BLACKLIST_NONE = 0,
> + OPTION_BLACKLIST_SENDSETUP = 1,
> + OPTION_BLACKLIST_RESERVED_IF = 2
> +} option_blacklist_reason_t;
I changed this to not use a typedef, you should not add new typedefs to
the kernel.
thanks,
greg k-h
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