From 6a2071006b72bf887e38c025c60f98d2998ceacb Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Mon, 4 Jan 2010 02:43:19 -0300 Subject: V4L/DVB (13930): dib0700: rework IR logic for firmware 1.20 When firmware 1.20 was introduced, the dib0700 switched from a polling model using a USB control message, to the messages being delivered on a USB bulk pipe. The code I originally added would do a blocking read on the pipe with a 50ms timeout. Because the dvb-usb-remote code makes use of the global workqueue, this resulted in the global workqueue being blocked 50% of the time. Also, the synchronous urb_bulk_msg() call would burn excess CPU time (reflected as an abnormal increase in the system's load average when devices were connected). Rework the logic so that we now setup an asynchronous callback on the bulk pipe, so that we now only handle RC data when it arrives on the pipe. Note that we provide a stub function for the RC polling callback so that we can continue to leverage the shared code in dvb-usb-rc for the setting up of the input device. Signed-off-by: Devin Heitmueller Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/dib0700.h | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/media/dvb/dvb-usb/dib0700.h') diff --git a/drivers/media/dvb/dvb-usb/dib0700.h b/drivers/media/dvb/dvb-usb/dib0700.h index 495a90577c5f..83fc24a6c31a 100644 --- a/drivers/media/dvb/dvb-usb/dib0700.h +++ b/drivers/media/dvb/dvb-usb/dib0700.h @@ -42,7 +42,6 @@ struct dib0700_state { u16 mt2060_if1[2]; u8 rc_toggle; u8 rc_counter; - u8 rc_func_version; u8 is_dib7000pc; u8 fw_use_new_i2c_api; u8 disable_streaming_master_mode; -- cgit v1.2.3