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usbtest: make module param pattern writeable

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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>
This commit is contained in:
Vikram Pandita 2009-11-09 21:24:32 -06:00 committed by Greg Kroah-Hartman
parent ed7487c2c2
commit 7f4e985448
1 changed files with 5 additions and 2 deletions
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7
drivers/usb/misc/usbtest.c
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@ -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;
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 *intf, unsigned int code, void *buf)
// FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
pattern = mod_pattern;
if (code != USBTEST_REQUEST)
return -EOPNOTSUPP;