USB: Put phidgets driver in a sysfs class
This patch creates a device class phidget and add the phidget drivers to
them.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/misc/phidgetkit.c b/drivers/usb/misc/phidgetkit.c
index bfbbbfb..3f508957 100644
--- a/drivers/usb/misc/phidgetkit.c
+++ b/drivers/usb/misc/phidgetkit.c
@@ -20,6 +20,8 @@
#include <linux/module.h>
#include <linux/usb.h>
+#include "phidget.h"
+
#define DRIVER_AUTHOR "Sean Young <sean@mess.org>"
#define DRIVER_DESC "USB PhidgetInterfaceKit Driver"
@@ -57,11 +59,15 @@
ifkit(0, 8, 8, 1);
ifkit(0, 16, 16, 0);
+static unsigned long device_no;
+
struct interfacekit {
struct usb_device *udev;
struct usb_interface *intf;
struct driver_interfacekit *ifkit;
+ struct device *dev;
unsigned long outputs;
+ int dev_no;
u8 inputs[MAX_INTERFACES];
u16 sensors[MAX_INTERFACES];
u8 lcd_files_on;
@@ -180,21 +186,21 @@
}
#define set_lcd_line(number) \
-static ssize_t lcd_line_##number(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
-{ \
- struct usb_interface *intf = to_usb_interface(dev); \
- struct interfacekit *kit = usb_get_intfdata(intf); \
- change_string(kit, buf, number - 1); \
- return count; \
-} \
+static ssize_t lcd_line_##number(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
+{ \
+ struct interfacekit *kit = dev_get_drvdata(dev); \
+ change_string(kit, buf, number - 1); \
+ return count; \
+} \
static DEVICE_ATTR(lcd_line_##number, S_IWUGO, NULL, lcd_line_##number);
set_lcd_line(1);
set_lcd_line(2);
static ssize_t set_backlight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
- struct usb_interface *intf = to_usb_interface(dev);
- struct interfacekit *kit = usb_get_intfdata(intf);
+ struct interfacekit *kit = dev_get_drvdata(dev);
int enabled;
unsigned char *buffer;
int retval = -ENOMEM;
@@ -232,16 +238,15 @@
{
if (kit->lcd_files_on) {
dev_dbg(&kit->udev->dev, "Removing lcd files\n");
- device_remove_file(&kit->intf->dev, &dev_attr_lcd_line_1);
- device_remove_file(&kit->intf->dev, &dev_attr_lcd_line_2);
- device_remove_file(&kit->intf->dev, &dev_attr_backlight);
+ device_remove_file(kit->dev, &dev_attr_lcd_line_1);
+ device_remove_file(kit->dev, &dev_attr_lcd_line_2);
+ device_remove_file(kit->dev, &dev_attr_backlight);
}
}
static ssize_t enable_lcd_files(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
- struct usb_interface *intf = to_usb_interface(dev);
- struct interfacekit *kit = usb_get_intfdata(intf);
+ struct interfacekit *kit = dev_get_drvdata(dev);
int enable;
if (kit->ifkit->has_lcd == 0)
@@ -253,9 +258,9 @@
if (enable) {
if (!kit->lcd_files_on) {
dev_dbg(&kit->udev->dev, "Adding lcd files\n");
- device_create_file(&kit->intf->dev, &dev_attr_lcd_line_1);
- device_create_file(&kit->intf->dev, &dev_attr_lcd_line_2);
- device_create_file(&kit->intf->dev, &dev_attr_backlight);
+ device_create_file(kit->dev, &dev_attr_lcd_line_1);
+ device_create_file(kit->dev, &dev_attr_lcd_line_2);
+ device_create_file(kit->dev, &dev_attr_backlight);
kit->lcd_files_on = 1;
}
} else {
@@ -362,24 +367,24 @@
for (i=0; i<kit->ifkit->inputs; i++) {
if (test_and_clear_bit(i, &kit->input_events)) {
sprintf(sysfs_file, "input%d", i + 1);
- sysfs_notify(&kit->intf->dev.kobj, NULL, sysfs_file);
+ sysfs_notify(&kit->dev->kobj, NULL, sysfs_file);
}
}
for (i=0; i<kit->ifkit->sensors; i++) {
if (test_and_clear_bit(i, &kit->sensor_events)) {
sprintf(sysfs_file, "sensor%d", i + 1);
- sysfs_notify(&kit->intf->dev.kobj, NULL, sysfs_file);
+ sysfs_notify(&kit->dev->kobj, NULL, sysfs_file);
}
}
}
#define show_set_output(value) \
-static ssize_t set_output##value(struct device *dev, struct device_attribute *attr, const char *buf, \
- size_t count) \
+static ssize_t set_output##value(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
{ \
- struct usb_interface *intf = to_usb_interface(dev); \
- struct interfacekit *kit = usb_get_intfdata(intf); \
+ struct interfacekit *kit = dev_get_drvdata(dev); \
int enabled; \
int retval; \
\
@@ -391,10 +396,11 @@
return retval ? retval : count; \
} \
\
-static ssize_t show_output##value(struct device *dev, struct device_attribute *attr, char *buf) \
+static ssize_t show_output##value(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
{ \
- struct usb_interface *intf = to_usb_interface(dev); \
- struct interfacekit *kit = usb_get_intfdata(intf); \
+ struct interfacekit *kit = dev_get_drvdata(dev); \
\
return sprintf(buf, "%d\n", !!test_bit(value - 1, &kit->outputs));\
} \
@@ -420,8 +426,7 @@
#define show_input(value) \
static ssize_t show_input##value(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
- struct usb_interface *intf = to_usb_interface(dev); \
- struct interfacekit *kit = usb_get_intfdata(intf); \
+ struct interfacekit *kit = dev_get_drvdata(dev); \
\
return sprintf(buf, "%d\n", (int)kit->inputs[value - 1]); \
} \
@@ -445,10 +450,11 @@
show_input(16);
#define show_sensor(value) \
-static ssize_t show_sensor##value(struct device *dev, struct device_attribute *attr, char *buf) \
+static ssize_t show_sensor##value(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
{ \
- struct usb_interface *intf = to_usb_interface(dev); \
- struct interfacekit *kit = usb_get_intfdata(intf); \
+ struct interfacekit *kit = dev_get_drvdata(dev); \
\
return sprintf(buf, "%d\n", (int)kit->sensors[value - 1]); \
} \
@@ -471,6 +477,7 @@
struct interfacekit *kit;
struct driver_interfacekit *ifkit;
int pipe, maxp, rc = -ENOMEM;
+ int bit, value;
ifkit = (struct driver_interfacekit *)id->driver_info;
if (!ifkit)
@@ -493,6 +500,7 @@
if (!kit)
goto out;
+ kit->dev_no = -1;
kit->ifkit = ifkit;
kit->data = usb_buffer_alloc(dev, URB_INT_SIZE, SLAB_ATOMIC, &kit->data_dma);
if (!kit->data)
@@ -513,73 +521,88 @@
usb_set_intfdata(intf, kit);
+ do {
+ bit = find_first_zero_bit(&device_no, sizeof(device_no));
+ value = test_and_set_bit(bit, &device_no);
+ } while(value);
+ kit->dev_no = bit;
+
+ kit->dev = device_create(phidget_class, &kit->udev->dev, 0,
+ "interfacekit%d", kit->dev_no);
+ if (IS_ERR(kit->dev)) {
+ rc = PTR_ERR(kit->dev);
+ kit->dev = NULL;
+ goto out;
+ }
+ dev_set_drvdata(kit->dev, kit);
+
if (usb_submit_urb(kit->irq, GFP_KERNEL)) {
rc = -EIO;
goto out;
}
if (ifkit->outputs >= 4) {
- device_create_file(&intf->dev, &dev_attr_output1);
- device_create_file(&intf->dev, &dev_attr_output2);
- device_create_file(&intf->dev, &dev_attr_output3);
- device_create_file(&intf->dev, &dev_attr_output4);
+ device_create_file(kit->dev, &dev_attr_output1);
+ device_create_file(kit->dev, &dev_attr_output2);
+ device_create_file(kit->dev, &dev_attr_output3);
+ device_create_file(kit->dev, &dev_attr_output4);
}
if (ifkit->outputs >= 8) {
- device_create_file(&intf->dev, &dev_attr_output5);
- device_create_file(&intf->dev, &dev_attr_output6);
- device_create_file(&intf->dev, &dev_attr_output7);
- device_create_file(&intf->dev, &dev_attr_output8);
+ device_create_file(kit->dev, &dev_attr_output5);
+ device_create_file(kit->dev, &dev_attr_output6);
+ device_create_file(kit->dev, &dev_attr_output7);
+ device_create_file(kit->dev, &dev_attr_output8);
}
if (ifkit->outputs == 16) {
- device_create_file(&intf->dev, &dev_attr_output9);
- device_create_file(&intf->dev, &dev_attr_output10);
- device_create_file(&intf->dev, &dev_attr_output11);
- device_create_file(&intf->dev, &dev_attr_output12);
- device_create_file(&intf->dev, &dev_attr_output13);
- device_create_file(&intf->dev, &dev_attr_output14);
- device_create_file(&intf->dev, &dev_attr_output15);
- device_create_file(&intf->dev, &dev_attr_output16);
+ device_create_file(kit->dev, &dev_attr_output9);
+ device_create_file(kit->dev, &dev_attr_output10);
+ device_create_file(kit->dev, &dev_attr_output11);
+ device_create_file(kit->dev, &dev_attr_output12);
+ device_create_file(kit->dev, &dev_attr_output13);
+ device_create_file(kit->dev, &dev_attr_output14);
+ device_create_file(kit->dev, &dev_attr_output15);
+ device_create_file(kit->dev, &dev_attr_output16);
}
if (ifkit->inputs >= 4) {
- device_create_file(&intf->dev, &dev_attr_input1);
- device_create_file(&intf->dev, &dev_attr_input2);
- device_create_file(&intf->dev, &dev_attr_input3);
- device_create_file(&intf->dev, &dev_attr_input4);
+ device_create_file(kit->dev, &dev_attr_input1);
+ device_create_file(kit->dev, &dev_attr_input2);
+ device_create_file(kit->dev, &dev_attr_input3);
+ device_create_file(kit->dev, &dev_attr_input4);
}
if (ifkit->inputs >= 8) {
- device_create_file(&intf->dev, &dev_attr_input5);
- device_create_file(&intf->dev, &dev_attr_input6);
- device_create_file(&intf->dev, &dev_attr_input7);
- device_create_file(&intf->dev, &dev_attr_input8);
+ device_create_file(kit->dev, &dev_attr_input5);
+ device_create_file(kit->dev, &dev_attr_input6);
+ device_create_file(kit->dev, &dev_attr_input7);
+ device_create_file(kit->dev, &dev_attr_input8);
}
if (ifkit->inputs == 16) {
- device_create_file(&intf->dev, &dev_attr_input9);
- device_create_file(&intf->dev, &dev_attr_input10);
- device_create_file(&intf->dev, &dev_attr_input11);
- device_create_file(&intf->dev, &dev_attr_input12);
- device_create_file(&intf->dev, &dev_attr_input13);
- device_create_file(&intf->dev, &dev_attr_input14);
- device_create_file(&intf->dev, &dev_attr_input15);
- device_create_file(&intf->dev, &dev_attr_input16);
+ device_create_file(kit->dev, &dev_attr_input9);
+ device_create_file(kit->dev, &dev_attr_input10);
+ device_create_file(kit->dev, &dev_attr_input11);
+ device_create_file(kit->dev, &dev_attr_input12);
+ device_create_file(kit->dev, &dev_attr_input13);
+ device_create_file(kit->dev, &dev_attr_input14);
+ device_create_file(kit->dev, &dev_attr_input15);
+ device_create_file(kit->dev, &dev_attr_input16);
}
if (ifkit->sensors >= 4) {
- device_create_file(&intf->dev, &dev_attr_sensor1);
- device_create_file(&intf->dev, &dev_attr_sensor2);
- device_create_file(&intf->dev, &dev_attr_sensor3);
- device_create_file(&intf->dev, &dev_attr_sensor4);
+ device_create_file(kit->dev, &dev_attr_sensor1);
+ device_create_file(kit->dev, &dev_attr_sensor2);
+ device_create_file(kit->dev, &dev_attr_sensor3);
+ device_create_file(kit->dev, &dev_attr_sensor4);
}
if (ifkit->sensors >= 7) {
- device_create_file(&intf->dev, &dev_attr_sensor5);
- device_create_file(&intf->dev, &dev_attr_sensor6);
- device_create_file(&intf->dev, &dev_attr_sensor7);
+ device_create_file(kit->dev, &dev_attr_sensor5);
+ device_create_file(kit->dev, &dev_attr_sensor6);
+ device_create_file(kit->dev, &dev_attr_sensor7);
}
if (ifkit->sensors == 8)
- device_create_file(&intf->dev, &dev_attr_sensor8);
+ device_create_file(kit->dev, &dev_attr_sensor8);
if (ifkit->has_lcd)
- device_create_file(&intf->dev, &dev_attr_lcd);
+ device_create_file(kit->dev, &dev_attr_lcd);
dev_info(&intf->dev, "USB PhidgetInterfaceKit %d/%d/%d attached\n",
ifkit->sensors, ifkit->inputs, ifkit->outputs);
@@ -592,6 +615,11 @@
usb_free_urb(kit->irq);
if (kit->data)
usb_buffer_free(dev, URB_INT_SIZE, kit->data, kit->data_dma);
+ if (kit->dev)
+ device_unregister(kit->dev);
+ if (kit->dev_no >= 0)
+ clear_bit(kit->dev_no, &device_no);
+
kfree(kit);
}
@@ -614,72 +642,76 @@
cancel_delayed_work(&kit->do_notify);
if (kit->ifkit->outputs >= 4) {
- device_remove_file(&interface->dev, &dev_attr_output1);
- device_remove_file(&interface->dev, &dev_attr_output2);
- device_remove_file(&interface->dev, &dev_attr_output3);
- device_remove_file(&interface->dev, &dev_attr_output4);
+ device_remove_file(kit->dev, &dev_attr_output1);
+ device_remove_file(kit->dev, &dev_attr_output2);
+ device_remove_file(kit->dev, &dev_attr_output3);
+ device_remove_file(kit->dev, &dev_attr_output4);
}
if (kit->ifkit->outputs >= 8) {
- device_remove_file(&interface->dev, &dev_attr_output5);
- device_remove_file(&interface->dev, &dev_attr_output6);
- device_remove_file(&interface->dev, &dev_attr_output7);
- device_remove_file(&interface->dev, &dev_attr_output8);
+ device_remove_file(kit->dev, &dev_attr_output5);
+ device_remove_file(kit->dev, &dev_attr_output6);
+ device_remove_file(kit->dev, &dev_attr_output7);
+ device_remove_file(kit->dev, &dev_attr_output8);
}
if (kit->ifkit->outputs == 16) {
- device_remove_file(&interface->dev, &dev_attr_output9);
- device_remove_file(&interface->dev, &dev_attr_output10);
- device_remove_file(&interface->dev, &dev_attr_output11);
- device_remove_file(&interface->dev, &dev_attr_output12);
- device_remove_file(&interface->dev, &dev_attr_output13);
- device_remove_file(&interface->dev, &dev_attr_output14);
- device_remove_file(&interface->dev, &dev_attr_output15);
- device_remove_file(&interface->dev, &dev_attr_output16);
+ device_remove_file(kit->dev, &dev_attr_output9);
+ device_remove_file(kit->dev, &dev_attr_output10);
+ device_remove_file(kit->dev, &dev_attr_output11);
+ device_remove_file(kit->dev, &dev_attr_output12);
+ device_remove_file(kit->dev, &dev_attr_output13);
+ device_remove_file(kit->dev, &dev_attr_output14);
+ device_remove_file(kit->dev, &dev_attr_output15);
+ device_remove_file(kit->dev, &dev_attr_output16);
}
if (kit->ifkit->inputs >= 4) {
- device_remove_file(&interface->dev, &dev_attr_input1);
- device_remove_file(&interface->dev, &dev_attr_input2);
- device_remove_file(&interface->dev, &dev_attr_input3);
- device_remove_file(&interface->dev, &dev_attr_input4);
+ device_remove_file(kit->dev, &dev_attr_input1);
+ device_remove_file(kit->dev, &dev_attr_input2);
+ device_remove_file(kit->dev, &dev_attr_input3);
+ device_remove_file(kit->dev, &dev_attr_input4);
}
if (kit->ifkit->inputs >= 8) {
- device_remove_file(&interface->dev, &dev_attr_input5);
- device_remove_file(&interface->dev, &dev_attr_input6);
- device_remove_file(&interface->dev, &dev_attr_input7);
- device_remove_file(&interface->dev, &dev_attr_input8);
+ device_remove_file(kit->dev, &dev_attr_input5);
+ device_remove_file(kit->dev, &dev_attr_input6);
+ device_remove_file(kit->dev, &dev_attr_input7);
+ device_remove_file(kit->dev, &dev_attr_input8);
}
if (kit->ifkit->inputs == 16) {
- device_remove_file(&interface->dev, &dev_attr_input9);
- device_remove_file(&interface->dev, &dev_attr_input10);
- device_remove_file(&interface->dev, &dev_attr_input11);
- device_remove_file(&interface->dev, &dev_attr_input12);
- device_remove_file(&interface->dev, &dev_attr_input13);
- device_remove_file(&interface->dev, &dev_attr_input14);
- device_remove_file(&interface->dev, &dev_attr_input15);
- device_remove_file(&interface->dev, &dev_attr_input16);
+ device_remove_file(kit->dev, &dev_attr_input9);
+ device_remove_file(kit->dev, &dev_attr_input10);
+ device_remove_file(kit->dev, &dev_attr_input11);
+ device_remove_file(kit->dev, &dev_attr_input12);
+ device_remove_file(kit->dev, &dev_attr_input13);
+ device_remove_file(kit->dev, &dev_attr_input14);
+ device_remove_file(kit->dev, &dev_attr_input15);
+ device_remove_file(kit->dev, &dev_attr_input16);
}
if (kit->ifkit->sensors >= 4) {
- device_remove_file(&interface->dev, &dev_attr_sensor1);
- device_remove_file(&interface->dev, &dev_attr_sensor2);
- device_remove_file(&interface->dev, &dev_attr_sensor3);
- device_remove_file(&interface->dev, &dev_attr_sensor4);
+ device_remove_file(kit->dev, &dev_attr_sensor1);
+ device_remove_file(kit->dev, &dev_attr_sensor2);
+ device_remove_file(kit->dev, &dev_attr_sensor3);
+ device_remove_file(kit->dev, &dev_attr_sensor4);
}
if (kit->ifkit->sensors >= 7) {
- device_remove_file(&interface->dev, &dev_attr_sensor5);
- device_remove_file(&interface->dev, &dev_attr_sensor6);
- device_remove_file(&interface->dev, &dev_attr_sensor7);
+ device_remove_file(kit->dev, &dev_attr_sensor5);
+ device_remove_file(kit->dev, &dev_attr_sensor6);
+ device_remove_file(kit->dev, &dev_attr_sensor7);
}
if (kit->ifkit->sensors == 8)
- device_remove_file(&interface->dev, &dev_attr_sensor8);
+ device_remove_file(kit->dev, &dev_attr_sensor8);
if (kit->ifkit->has_lcd)
- device_remove_file(&interface->dev, &dev_attr_lcd);
+ device_remove_file(kit->dev, &dev_attr_lcd);
+
+ device_unregister(kit->dev);
dev_info(&interface->dev, "USB PhidgetInterfaceKit %d/%d/%d detached\n",
kit->ifkit->sensors, kit->ifkit->inputs, kit->ifkit->outputs);
usb_put_dev(kit->udev);
+ clear_bit(kit->dev_no, &device_no);
+
kfree(kit);
}