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HID: i2c-hid: implement request() callback 

This allows HID drivers to also get/set reports through hid_hw_request().

Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hifive-unleashed-5.1
Benjamin Tissoires 2013-02-25 11:31:50 +01:00 committed by Jiri Kosina
parent b0a7868181
commit 545bef6810
1 changed files with 32 additions and 0 deletions
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32
drivers/hid/i2c-hid/i2c-hid.c
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@ -563,6 +563,37 @@ static int i2c_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
return ret;
}
static void i2c_hid_request(struct hid_device *hid, struct hid_report *rep,
int reqtype)
{
struct i2c_client *client = hid->driver_data;
struct i2c_hid *ihid = i2c_get_clientdata(client);
char *buf;
int ret;
buf = kzalloc(ihid->bufsize, GFP_KERNEL);
if (!buf)
return;
switch (reqtype) {
case HID_REQ_GET_REPORT:
ret = i2c_hid_get_raw_report(hid, rep->id, buf, ihid->bufsize,
rep->type);
if (ret < 0)
dev_err(&client->dev, "%s: unable to get report: %d\n",
__func__, ret);
else
hid_input_report(hid, rep->type, buf, ret, 0);
break;
case HID_REQ_SET_REPORT:
hid_output_report(rep, buf);
i2c_hid_output_raw_report(hid, buf, ihid->bufsize, rep->type);
break;
}
kfree(buf);
}
static int i2c_hid_parse(struct hid_device *hid)
{
struct i2c_client *client = hid->driver_data;
@ -742,6 +773,7 @@ static struct hid_ll_driver i2c_hid_ll_driver = {
.open = i2c_hid_open,
.close = i2c_hid_close,
.power = i2c_hid_power,
.request = i2c_hid_request,
.hidinput_input_event = i2c_hid_hidinput_input_event,
};