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$FreeWRT$ |
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Originally from http://www.junxion.com/opensource/linux_highspeed_usbserial.html |
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except that we don't do camel-case and honour coding style(9) |
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|
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--- linux-2.6.19.1/drivers/usb/serial/usb-serial.c.orig 2006-12-11 20:32:53.000000000 +0100 |
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+++ linux-2.6.19.1/drivers/usb/serial/usb-serial.c 2007-07-31 18:33:13.000000000 +0200 |
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@@ -58,6 +58,7 @@ static struct usb_driver usb_serial_driv |
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*/ |
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|
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static int debug; |
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+static int max_pksz = 0; |
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static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; /* initially all NULL */ |
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static LIST_HEAD(usb_serial_driver_list); |
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|
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@@ -813,6 +814,8 @@ int usb_serial_probe(struct usb_interfac |
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goto probe_error; |
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} |
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buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); |
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+ if (buffer_size < max_pksz) |
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+ buffer_size = max_pksz; |
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port->bulk_in_size = buffer_size; |
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port->bulk_in_endpointAddress = endpoint->bEndpointAddress; |
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port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL); |
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@@ -1190,3 +1193,6 @@ MODULE_LICENSE("GPL"); |
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module_param(debug, bool, S_IRUGO | S_IWUSR); |
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MODULE_PARM_DESC(debug, "Debug enabled or not"); |
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+ |
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+module_param(max_pksz, int, 0); |
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+MODULE_PARM_DESC(max_pksz, "User specified USB endpoint packet size"); |
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