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add high-speed usb serial fix from Junxion to 2.4 kernel too (closes: #2274)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8573 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nico 2007-09-02 14:18:28 +00:00
parent 16c760b374
commit 84fc36a443
1 changed files with 30 additions and 0 deletions
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30
target/linux/generic-2.4/patches/801-usb_serial_endpoint_size.patch Normal file
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@ -0,0 +1,30 @@
--- linux-2.4.34-old/drivers/usb/serial/usbserial.c 2007-08-27 15:32:14.000000000 +0200
+++ linux-2.4.34-new/drivers/usb/serial/usbserial.c 2007-09-02 14:10:52.000000000 +0200
@@ -331,6 +331,7 @@
#ifdef CONFIG_USB_SERIAL_GENERIC
static __u16 vendor = 0x05f9;
static __u16 product = 0xffff;
+static int maxSize = 0;
static struct usb_device_id generic_device_ids[9]; /* Initially all zeroes. */
@@ -1557,7 +1558,11 @@
err("No free urbs available");
goto probe_error;
}
+#ifdef CONFIG_USB_SERIAL_GENERIC
+ buffer_size = (endpoint->wMaxPacketSize > maxSize) ? endpoint->wMaxPacketSize : maxSize;
+#else
buffer_size = endpoint->wMaxPacketSize;
+#endif
port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL);
if (!port->bulk_in_buffer) {
@@ -1945,4 +1950,7 @@
MODULE_PARM(product, "h");
MODULE_PARM_DESC(product, "User specified USB idProduct");
+
+MODULE_PARM(maxSize,"i");
+MODULE_PARM_DESC(maxSize,"User specified USB endpoint size");
#endif