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| author | Benjamin Tissoires <benjamin.tissoires@gmail.com> | 2013-02-25 14:31:50 +0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-02-25 16:26:42 +0400 |
| commit | 545bef681088cbf49c9c11d63872698b81eac7eb (patch) | |
| tree | 64a544caaa337f97465dd575fb9ecf86e3748b7e /drivers | |
| parent | b0a7868181be0a28fc35231d7435c1fb360eb675 (diff) | |
| download | linux-545bef681088cbf49c9c11d63872698b81eac7eb.tar.xz | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hid/i2c-hid/i2c-hid.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index ec7930217a6d..935f387be95a 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -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, }; |