From: Gernot Hillier <gernot@xxxxxxxxxx>
The 4G XS Stick W14 seems to not understand RTS/DTR setting in
option_send_setup causing long timeouts on any open() which
disturbs a lot of well-known userspace applications like
minicom or ModemManager.
Therefore, we enable OPTION_BLACKLIST_SENDSETUP blacklisting for it.
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 10:25:00.000000000 +0100
+++ linux-next/drivers/usb/serial/option.c 2010-01-09 10:25:05.000000000 +0100
@@ -357,6 +357,13 @@ struct option_blacklist_info {
option_blacklist_reason_t reason;
};
+static const u8 four_g_w14_no_sendsetup[] = { 0, 1 };
+static const struct option_blacklist_info four_g_w14_blacklist = {
+ .infolen = ARRAY_SIZE(four_g_w14_no_sendsetup),
+ .ifaceinfo = four_g_w14_no_sendsetup,
+ .reason = OPTION_BLACKLIST_SENDSETUP
+};
+
static struct usb_device_id option_ids[] = {
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -657,7 +664,9 @@ static struct usb_device_id option_ids[]
{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S) },
{ USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) },
{ USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) },
- { USB_DEVICE(FOUR_G_SYSTEMS_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14) },
+ { USB_DEVICE(FOUR_G_SYSTEMS_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14),
+ .driver_info = (kernel_ulong_t)&four_g_w14_blacklist
+ },
{ USB_DEVICE(HAIER_VENDOR_ID, HAIER_PRODUCT_CE100) },
{ } /* Terminating entry */
};
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
