Hi
On Wed, Mar 5, 2014 at 10:18 PM, Benjamin Tissoires
<benjamin.tissoi...@redhat.com> wrote:
> hid_out_raw_report is going to be obsoleted as it is not part of the
> unified HID low level transport documentation
> (Documentation/hid/hid-transport.txt)
>
> hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
> is strictly equivalent to:
> hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
> HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
This time you might be right that feature-reports always put the
report-id into the first byte, but I'd still prefer if we avoid using
this. Besides, the code is much nicer imho if we pass the ID directly,
see below..
>
> So use the new api.
>
> Signed-off-by: Benjamin Tissoires <benjamin.tissoi...@redhat.com>
> ---
>
> no changes since v1
>
> drivers/hid/hid-cp2112.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c
> index 1025982..860db694 100644
> --- a/drivers/hid/hid-cp2112.c
> +++ b/drivers/hid/hid-cp2112.c
> @@ -185,8 +185,8 @@ static int cp2112_gpio_direction_input(struct gpio_chip
> *chip, unsigned offset)
> buf[1] &= ~(1 << offset);
> buf[2] = gpio_push_pull;
>
> - ret = hdev->hid_output_raw_report(hdev, buf, sizeof(buf),
> - HID_FEATURE_REPORT);
> + ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
> + HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
buf[0] => CP2112_GPIO_CONFIG
> if (ret < 0) {
> hid_err(hdev, "error setting GPIO config: %d\n", ret);
> return ret;
> @@ -207,8 +207,8 @@ static void cp2112_gpio_set(struct gpio_chip *chip,
> unsigned offset, int value)
> buf[1] = value ? 0xff : 0;
> buf[2] = 1 << offset;
>
> - ret = hdev->hid_output_raw_report(hdev, buf, sizeof(buf),
> - HID_FEATURE_REPORT);
> + ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
> + HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
Here buf[0] seems fine as it is set explicitly just 3 lines above to
CP2112_GPIO_SET.
> if (ret < 0)
> hid_err(hdev, "error setting GPIO values: %d\n", ret);
> }
> @@ -253,8 +253,8 @@ static int cp2112_gpio_direction_output(struct gpio_chip
> *chip,
> buf[1] |= 1 << offset;
> buf[2] = gpio_push_pull;
>
> - ret = hdev->hid_output_raw_report(hdev, buf, sizeof(buf),
> - HID_FEATURE_REPORT);
> + ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
> + HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
Here an explicit CP2112_GPIO_CONFIG seems nicer, imho.
Thanks
David
> if (ret < 0) {
> hid_err(hdev, "error setting GPIO config: %d\n", ret);
> return ret;
> --
> 1.8.5.3
>
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