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HID: roccat: allow readout of koneplus sensor register data

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tcu sysfs attr was used to only control calibration process so far. Direct
sensor register access possibility has been revealed. Allowing readout of tcu
permits usage of this feature.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Stefan Achatz 2012-10-17 16:35:42 +02:00 committed by Jiri Kosina
parent 4424f616e4
commit 5277e97c24
2 changed files with 13 additions and 4 deletions
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6
Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
View File

@ -104,9 +104,9 @@ What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-
Date: October 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: When written a calibration process for the tracking control unit
can be initiated/cancelled.
The data has to be 3 bytes long.
This file is writeonly.
can be initiated/cancelled. Also lets one read/write sensor
registers.
The data has to be 4 bytes long.
Users: http://roccat.sourceforge.net
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/tcu_image

11
drivers/hid/hid-roccat-koneplus.c
View File

@ -222,6 +222,14 @@ static ssize_t koneplus_sysfs_write_tcu(struct file *fp,
sizeof(struct koneplus_tcu), KONEPLUS_COMMAND_TCU);
}
static ssize_t koneplus_sysfs_read_tcu(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
return koneplus_sysfs_read(fp, kobj, buf, off, count,
sizeof(struct koneplus_tcu), KONEPLUS_COMMAND_TCU);
}
static ssize_t koneplus_sysfs_read_tcu_image(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
@ -426,8 +434,9 @@ static struct bin_attribute koneplus_bin_attributes[] = {
.write = koneplus_sysfs_write_sensor
},
{
.attr = { .name = "tcu", .mode = 0220 },
.attr = { .name = "tcu", .mode = 0660 },
.size = sizeof(struct koneplus_tcu),
.read = koneplus_sysfs_read_tcu,
.write = koneplus_sysfs_write_tcu
},
{