diff options
Diffstat (limited to 'target/linux/generic/patches-2.6.31/801-usb_serial_endpoint_size.patch')
| -rw-r--r-- | target/linux/generic/patches-2.6.31/801-usb_serial_endpoint_size.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/generic/patches-2.6.31/801-usb_serial_endpoint_size.patch b/target/linux/generic/patches-2.6.31/801-usb_serial_endpoint_size.patch new file mode 100644 index 000000000..41b3848f4 --- /dev/null +++ b/target/linux/generic/patches-2.6.31/801-usb_serial_endpoint_size.patch @@ -0,0 +1,25 @@ +--- a/drivers/usb/serial/usb-serial.c ++++ b/drivers/usb/serial/usb-serial.c +@@ -60,6 +60,7 @@ static struct usb_driver usb_serial_driv + drivers depend on it. + */ + ++static ushort maxSize = 0; + static int debug; + /* initially all NULL */ + static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; +@@ -947,7 +948,7 @@ int usb_serial_probe(struct usb_interfac + 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); +@@ -1381,3 +1382,5 @@ MODULE_LICENSE("GPL"); + + 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"); |