1 files changed, 15 insertions, 15 deletions

diff --git a/drivers/usb/input/powermate.c b/drivers/usb/input/powermate.c
index 7fa2f9b9fb69..3975b309d55f 100644
--- a/drivers/usb/input/powermate.c
+++ b/drivers/usb/input/powermate.c
@@ -10,7 +10,7 @@
  * back to the host when polled by the USB controller.
  *
  * Testing with the knob I have has shown that it measures approximately 94 "clicks"
- * for one full rotation. Testing with my High Speed Rotation Actuator (ok, it was 
+ * for one full rotation. Testing with my High Speed Rotation Actuator (ok, it was
  * a variable speed cordless electric drill) has shown that the device can measure
  * speeds of up to 7 clicks either clockwise or anticlockwise between pollings from
  * the host. If it counts more than 7 clicks before it is polled, it will wrap back
@@ -120,9 +120,9 @@ exit:
 /* Decide if we need to issue a control message and do so. Must be called with pm->lock taken */
 static void powermate_sync_state(struct powermate_device *pm)
 {
-        if (pm->requires_update == 0) 
+        if (pm->requires_update == 0)
                 return; /* no updates are required */
-        if (pm->config->status == -EINPROGRESS) 
+        if (pm->config->status == -EINPROGRESS)
                 return; /* an update is already in progress; it'll issue this update when it completes */
 
         if (pm->requires_update & UPDATE_PULSE_ASLEEP){
@@ -142,7 +142,7 @@ static void powermate_sync_state(struct powermate_device *pm)
                    2: multiply the speed
                    the argument only has an effect for operations 0 and 2, and ranges between
                    1 (least effect) to 255 (maximum effect).
-       
+
                    thus, several states are equivalent and are coalesced into one state.
 
                    we map this onto a range from 0 to 510, with:
@@ -151,7 +151,7 @@ static void powermate_sync_state(struct powermate_device *pm)
                    256 -- 510  -- use multiple (510 = fastest).
 
                    Only values of 'arg' quite close to 255 are particularly useful/spectacular.
-                */    
+                */
                 if (pm->pulse_speed < 255){
                         op = 0;                   // divide
                         arg = 255 - pm->pulse_speed;
@@ -199,14 +199,14 @@ static void powermate_config_complete(struct urb *urb, struct pt_regs *regs)
 
         if (urb->status)
                 printk(KERN_ERR "powermate: config urb returned %d\n", urb->status);
-        
+
         spin_lock_irqsave(&pm->lock, flags);
         powermate_sync_state(pm);
         spin_unlock_irqrestore(&pm->lock, flags);
 }
 
 /* Set the LED up as described and begin the sync with the hardware if required */
-static void powermate_pulse_led(struct powermate_device *pm, int static_brightness, int pulse_speed, 
+static void powermate_pulse_led(struct powermate_device *pm, int static_brightness, int pulse_speed,
                                 int pulse_table, int pulse_asleep, int pulse_awake)
 {
         unsigned long flags;
@@ -229,7 +229,7 @@ static void powermate_pulse_led(struct powermate_device *pm, int static_brightne
         /* mark state updates which are required */
         if (static_brightness != pm->static_brightness){
                 pm->static_brightness = static_brightness;
-                pm->requires_update |= UPDATE_STATIC_BRIGHTNESS;                
+                pm->requires_update |= UPDATE_STATIC_BRIGHTNESS;
         }
         if (pulse_asleep != pm->pulse_asleep){
                 pm->pulse_asleep = pulse_asleep;
@@ -246,7 +246,7 @@ static void powermate_pulse_led(struct powermate_device *pm, int static_brightne
         }
 
         powermate_sync_state(pm);
-   
+
         spin_unlock_irqrestore(&pm->lock, flags);
 }
 
@@ -257,19 +257,19 @@ static int powermate_input_event(struct input_dev *dev, unsigned int type, unsig
         struct powermate_device *pm = dev->private;
 
         if (type == EV_MSC && code == MSC_PULSELED){
-                /*  
+                /*
                     bits  0- 7: 8 bits: LED brightness
                     bits  8-16: 9 bits: pulsing speed modifier (0 ... 510); 0-254 = slower, 255 = standard, 256-510 = faster.
                     bits 17-18: 2 bits: pulse table (0, 1, 2 valid)
                     bit     19: 1 bit : pulse whilst asleep?
                     bit     20: 1 bit : pulse constantly?
-                */  
+                */
                 int static_brightness = command & 0xFF;   // bits 0-7
                 int pulse_speed = (command >> 8) & 0x1FF; // bits 8-16
                 int pulse_table = (command >> 17) & 0x3;  // bits 17-18
                 int pulse_asleep = (command >> 19) & 0x1; // bit 19
                 int pulse_awake  = (command >> 20) & 0x1; // bit 20
-  
+
                 powermate_pulse_led(pm, static_brightness, pulse_speed, pulse_table, pulse_asleep, pulse_awake);
         }
 
@@ -378,7 +378,7 @@ static int powermate_probe(struct usb_interface *intf, const struct usb_device_i
         switch (le16_to_cpu(udev->descriptor.idProduct)) {
         case POWERMATE_PRODUCT_NEW: pm->input.name = pm_name_powermate; break;
         case POWERMATE_PRODUCT_OLD: pm->input.name = pm_name_soundknob; break;
-        default: 
+        default:
                 pm->input.name = pm_name_soundknob;
                 printk(KERN_WARNING "powermate: unknown product id %04x\n",
                        le16_to_cpu(udev->descriptor.idProduct));
@@ -402,11 +402,11 @@ static int powermate_probe(struct usb_interface *intf, const struct usb_device_i
         usb_make_path(udev, path, 64);
         snprintf(pm->phys, 64, "%s/input0", path);
         printk(KERN_INFO "input: %s on %s\n", pm->input.name, pm->input.phys);
-        
+
         /* force an update of everything */
         pm->requires_update = UPDATE_PULSE_ASLEEP | UPDATE_PULSE_AWAKE | UPDATE_PULSE_MODE | UPDATE_STATIC_BRIGHTNESS;
         powermate_pulse_led(pm, 0x80, 255, 0, 1, 0); // set default pulse parameters
-  
+
         usb_set_intfdata(intf, pm);
         return 0;
 }