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--- linux/drivers/usb/serial/usbserial.c~33-usbserial-bulk_in_size-4096.diff 2006-03-31 15:05:46.674445000 +0200
+++ linux/drivers/usb/serial/usbserial.c 2006-04-07 12:23:56.970400500 +0200
@@ -332,6 +332,9 @@
static __u16 vendor = 0x05f9;
static __u16 product = 0xffff;
+static int count_smaller64 = 0;
+static int count_bigger64 = 0;
+
static struct usb_device_id generic_device_ids[5]; /* Initially all zeroes. */
/* All of the device info needed for the Generic Serial Converter */
@@ -396,6 +399,10 @@
drivers depend on it.
*/
+/* global params controlling max sizes for read, write, control */
+static int maxszr = 0;
+static int maxszw = 0;
+static int maxszc = 0;
static int serial_refcount;
static struct tty_driver serial_tty_driver;
@@ -1272,6 +1279,14 @@
tty_flip_buffer_push(tty);
}
+ if (urb->actual_length>64) {
+ count_bigger64++;
+ } else {
+ count_smaller64++;
+ }
+
+ /*printk("*** %d\n", urb->actual_length);*/
+
/* Continue trying to always read */
usb_fill_bulk_urb (port->read_urb, serial->dev,
usb_rcvbulkpipe (serial->dev,
@@ -1505,7 +1520,8 @@
err("No free urbs available");
goto probe_error;
}
- buffer_size = endpoint->wMaxPacketSize;
+ buffer_size = (endpoint->wMaxPacketSize > maxszr)?
+ endpoint->wMaxPacketSize: maxszr;
port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL);
if (!port->bulk_in_buffer) {
@@ -1530,7 +1546,8 @@
err("No free urbs available");
goto probe_error;
}
- buffer_size = endpoint->wMaxPacketSize;
+ buffer_size = (endpoint->wMaxPacketSize > maxszw)?
+ endpoint->wMaxPacketSize: maxszw;
port->bulk_out_size = buffer_size;
port->bulk_out_endpointAddress = endpoint->bEndpointAddress;
port->bulk_out_buffer = kmalloc (buffer_size, GFP_KERNEL);
@@ -1556,7 +1573,8 @@
err("No free urbs available");
goto probe_error;
}
- buffer_size = endpoint->wMaxPacketSize;
+ buffer_size = (endpoint->wMaxPacketSize > maxszc)?
+ endpoint->wMaxPacketSize: maxszc;
port->interrupt_in_endpointAddress = endpoint->bEndpointAddress;
port->interrupt_in_buffer = kmalloc (buffer_size, GFP_KERNEL);
if (!port->interrupt_in_buffer) {
@@ -1807,6 +1825,7 @@
static void __exit usb_serial_exit(void)
{
+ printk("*** received packets\n< 64: %d\n> 64: %d\n", count_smaller64, count_bigger64);
#ifdef CONFIG_USB_SERIAL_GENERIC
/* remove our generic driver */
@@ -1874,6 +1893,15 @@
MODULE_PARM(debug, "i");
MODULE_PARM_DESC(debug, "Debug enabled or not");
+MODULE_PARM(maxszr, "i");
+MODULE_PARM_DESC(maxszr, "User specified USB endpoint read size");
+
+MODULE_PARM(maxszw, "i");
+MODULE_PARM_DESC(maxszw, "User specified USB endpoint write size");
+
+MODULE_PARM(maxszc, "i");
+MODULE_PARM_DESC(maxszc, "User specified USB endpoint control size");
+
#ifdef CONFIG_USB_SERIAL_GENERIC
MODULE_PARM(vendor, "h");
MODULE_PARM_DESC(vendor, "User specified USB idVendor");
--- linux/drivers/usb/acm.c.orig 2006-04-07 13:56:33.837683000 +0200
+++ linux/drivers/usb/acm.c 2006-04-07 12:14:37.995466750 +0200
@@ -155,6 +155,11 @@
unsigned char clocal; /* termios CLOCAL */
};
+/* global params controlling max sizes for read, write, control */
+static int maxszr = 0;
+static int maxszw = 0;
+static int maxszc = 0;
+
static struct usb_driver acm_driver;
static struct tty_driver acm_tty_driver;
static struct acm *acm_table[ACM_TTY_MINORS];
@@ -573,9 +578,13 @@
}
memset(acm, 0, sizeof(struct acm));
- ctrlsize = epctrl->wMaxPacketSize;
- readsize = epread->wMaxPacketSize;
- acm->writesize = epwrite->wMaxPacketSize;
+ ctrlsize = (epctrl->wMaxPacketSize > maxszc)?
+ epctrl->wMaxPacketSize: maxszc;
+ readsize = (epread->wMaxPacketSize > maxszr)?
+ epread->wMaxPacketSize: maxszr;
+ acm->writesize = (epwrite->wMaxPacketSize > maxszw)?
+ epwrite->wMaxPacketSize: maxszw;
+
acm->iface = cfacm->interface + j;
acm->minor = minor;
acm->dev = dev;
@@ -740,6 +749,16 @@
module_init(acm_init);
module_exit(acm_exit);
+
+MODULE_PARM(maxszr, "i");
+MODULE_PARM_DESC(maxszr, "User specified USB endpoint read size");
+
+MODULE_PARM(maxszw, "i");
+MODULE_PARM_DESC(maxszw, "User specified USB endpoint write size");
+
+MODULE_PARM(maxszc, "i");
+MODULE_PARM_DESC(maxszc, "User specified USB endpoint control size");
+
MODULE_AUTHOR( DRIVER_AUTHOR );
MODULE_DESCRIPTION( DRIVER_DESC );
MODULE_LICENSE("GPL");
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