Re: [PATCH 1/2] Bluetooth: hidp: implement hidinput_input_event callback
From: David Herrmann <hidden>
Date: 2013-07-11 16:07:10
Also in:
linux-bluetooth, lkml
Hi On Thu, Jul 11, 2013 at 4:10 PM, Benjamin Tissoires [off-list ref] wrote:
Hi David, On Thu, Jul 11, 2013 at 4:02 PM, David Herrmann [off-list ref] wrote:quoted
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+static int hidp_hidinput_event(struct input_dev *dev, unsigned int type, + unsigned int code, int value) +{ + struct hid_device *hid = input_get_drvdata(dev);I dislike that we have to deal with input_get_drvdata() in a transport driver. It is not obvious from the transport driver that this gives us an hid_device. But ok, that's how we do it in usbhid and hid-input so it's another issue..right. So we should definitively change the callback signature here.quoted
quoted
+ struct hidp_session *session = hid->driver_data; + struct hid_field *field; + int offset; + + BT_DBG("session %p type %d code %d value %d", + session, type, code, value); + + if (type != EV_LED) + return -1; + + offset = hidinput_find_field(hid, type, code, &field); + if (offset == -1) { + hid_warn(dev, "event field not found\n"); + return -1; + } + + hid_set_field(field, offset, value); + + return hidp_send_report(session, field->report); +} +We had this discussion before (regarding uhid and hidpinput_event), it would be nice to have a helper in hid-input.c which does this. We copy the code into every transport driver, which bugs me. But no-one stepped up to do this, so I am fine.oh, yes, you are right. I'll add it to my todo list (now that I am responsible of 2/4 code duplication :-S )
Feel free to push this series forward unchanged, if it is urgent. I have an experimental series here which implements a generic hidinput_input_event() handler (including the scheduled worker) that I will send later today or tomorrow. Cheers David
quoted
Reviewed-by: David Herrmann <redacted>Thanks for the review! Cheers, Benjaminquoted
Thanks! Davidquoted
static int hidp_get_raw_report(struct hid_device *hid, unsigned char report_number, unsigned char *data, size_t count,@@ -711,6 +736,7 @@ static struct hid_ll_driver hidp_hid_driver = { .stop = hidp_stop, .open = hidp_open, .close = hidp_close, + .hidinput_input_event = hidp_hidinput_event, }; /* This function sets up the hid device. It does not add it --1.8.3.1