The following patch puts the s5h1411 into low power mode until first use. This means that the device won't be sucking an extra 44ma on the USB port from the time the user plugs in the tuner until he/she decides to watch some television. Tested on the Pinnacle 801e. Devin -- Devin J. Heitmueller http://www.devinheitmueller.com AIM: devinheitmueller
Place s5h1411 into low power mode at end of attach routine() From: Devin Heitmueller <devin.heitmueller@xxxxxxxxx> Place the s5h1411 into low power mode until first use (to handle the case where the user plugs in the device and then doesn't use it for a while). On the Pinnacle 801e, this brings the power usage from 126ma down to 82ma. Signed-off-by: Devin Heitmueller <devin.heitmueller@xxxxxxxxx> Index: v4l-dvb/linux/drivers/media/dvb/frontends/s5h1411.c =================================================================== --- v4l-dvb.orig/linux/drivers/media/dvb/frontends/s5h1411.c 2008-11-15 22:33:00.000000000 -0500 +++ v4l-dvb/linux/drivers/media/dvb/frontends/s5h1411.c 2008-11-15 22:34:10.000000000 -0500 @@ -874,6 +874,9 @@ /* Note: Leaving the I2C gate open here. */ s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf5, 1); + /* Put the device into low-power mode until first use */ + s5h1411_set_powerstate(&state->frontend, 1); + return &state->frontend; error:
_______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
