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From vikram.pandita@ti.com Fri Nov 20 11:56:34 2009
From: Vikram Pandita <vikram.pandita@ti.com>
Date: Mon, 9 Nov 2009 21:24:32 -0600
Subject: usbtest: make module param pattern writeable
To: linux-usb@vger.kernel.org, <dbrownell@users.sourceforge.net>
Cc: linux-omap@vger.kernel.org, Vikram Pandita <vikram.pandita@ti.com>, Anand Gadiyar <gadiyar@ti.com>
Message-ID: <1257823472-19369-1-git-send-email-vikram.pandita@ti.com>
Allow module_param to be writeable. This allows us to change
the parameter if usbtest is built-in in the kernel.
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/misc/usbtest.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -213,8 +213,9 @@ static struct urb *simple_alloc_urb (
}
static unsigned pattern = 0;
-module_param (pattern, uint, S_IRUGO);
-MODULE_PARM_DESC(pattern, "i/o pattern (0 == zeroes)");
+static unsigned mod_pattern = 0;
+module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
static inline void simple_fill_buf (struct urb *urb)
{
@@ -1567,6 +1568,8 @@ usbtest_ioctl (struct usb_interface *int
// FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
+ pattern = mod_pattern;
+
if (code != USBTEST_REQUEST)
return -EOPNOTSUPP;
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