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HID: multitouch: append " Pen" to the name of the stylus input 

This is not just cosmetics, it can help to write udev and X.org
rules.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires 2013-03-22 18:38:33 +01:00 committed by Jiri Kosina
parent fa11aa72bd
commit 49a5a827a0
1 changed files with 30 additions and 1 deletions
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31
drivers/hid/hid-multitouch.c
View File

@ -44,6 +44,7 @@
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/input/mt.h>
#include <linux/string.h>
MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
@ -260,6 +261,14 @@ static struct mt_class mt_classes[] = {
{ }
};
static void mt_free_input_name(struct hid_input *hi)
{
struct hid_device *hdev = hi->report->device;
if (hi->input->name != hdev->name)
kfree(hi->input->name);
}
static ssize_t mt_show_quirks(struct device *dev,
struct device_attribute *attr,
char *buf)
@ -403,6 +412,12 @@ static void mt_pen_report(struct hid_device *hid, struct hid_report *report)
static void mt_pen_input_configured(struct hid_device *hdev,
struct hid_input *hi)
{
char *name = kzalloc(strlen(hi->input->name) + 5, GFP_KERNEL);
if (name) {
sprintf(name, "%s Pen", hi->input->name);
mt_free_input_name(hi);
hi->input->name = name;
}
}
static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
@ -903,6 +918,10 @@ static void mt_post_parse(struct mt_device *td)
static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
{
struct mt_device *td = hid_get_drvdata(hdev);
char *name = kstrdup(hdev->name, GFP_KERNEL);
if (name)
hi->input->name = name;
if (hi->report->id == td->mt_report_id)
mt_touch_input_configured(hdev, hi);
@ -916,6 +935,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
int ret, i;
struct mt_device *td;
struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
struct hid_input *hi;
for (i = 0; mt_classes[i].name ; i++) {
if (id->driver_data == mt_classes[i].name) {
@ -966,7 +986,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret)
goto fail;
goto hid_fail;
ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
@ -978,6 +998,9 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
return 0;
hid_fail:
list_for_each_entry(hi, &hdev->inputs, list)
mt_free_input_name(hi);
fail:
kfree(td->fields);
kfree(td);
@ -1007,8 +1030,14 @@ static int mt_resume(struct hid_device *hdev)
static void mt_remove(struct hid_device *hdev)
{
struct mt_device *td = hid_get_drvdata(hdev);
struct hid_input *hi;
sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
hid_hw_stop(hdev);
list_for_each_entry(hi, &hdev->inputs, list)
mt_free_input_name(hi);
kfree(td);
hid_set_drvdata(hdev, NULL);
}