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-rw-r--r--target/linux/generic-2.6/patches-2.6.22/601-usb_serial_endpoint_size.patch25
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.22/601-usb_serial_endpoint_size.patch b/target/linux/generic-2.6/patches-2.6.22/601-usb_serial_endpoint_size.patch
new file mode 100644
index 0000000000..220eaa7692
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.22/601-usb_serial_endpoint_size.patch
@@ -0,0 +1,25 @@
+--- linux-2.6.22.4-old/drivers/usb/serial/usb-serial.c 2007-08-21 06:33:06.000000000 +0200
++++ linux-2.6.22.4-new/drivers/usb/serial/usb-serial.c 2007-08-26 15:43:11.000000000 +0200
+@@ -56,6 +56,7 @@
+ drivers depend on it.
+ */
+
++static ushort maxSize = 0;
+ static int debug;
+ static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; /* initially all NULL */
+ static spinlock_t table_lock;
+@@ -864,7 +865,7 @@
+ dev_err(&interface->dev, "No free urbs available\n");
+ goto probe_error;
+ }
+- buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
++ buffer_size = (endpoint->wMaxPacketSize > maxSize) ? endpoint->wMaxPacketSize : maxSize;
+ port->bulk_in_size = buffer_size;
+ port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
+ port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL);
+@@ -1245,3 +1246,5 @@
+
+ module_param(debug, bool, S_IRUGO | S_IWUSR);
+ MODULE_PARM_DESC(debug, "Debug enabled or not");
++module_param(maxSize, ushort,0);
++MODULE_PARM_DESC(maxSize,"User specified USB endpoint size");