usbtest: make module param pattern writeable
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>
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@ -213,8 +213,9 @@ static struct urb *simple_alloc_urb (
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}
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static unsigned pattern = 0;
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static unsigned pattern = 0;
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module_param (pattern, uint, S_IRUGO);
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static unsigned mod_pattern;
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MODULE_PARM_DESC(pattern, "i/o pattern (0 == zeroes)");
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module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
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static inline void simple_fill_buf (struct urb *urb)
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static inline void simple_fill_buf (struct urb *urb)
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{
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{
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@ -1567,6 +1568,8 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
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// FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
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// FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
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pattern = mod_pattern;
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if (code != USBTEST_REQUEST)
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if (code != USBTEST_REQUEST)
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return -EOPNOTSUPP;
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return -EOPNOTSUPP;
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