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Rockbox mail archiveSubject: Re: Radio power handlingRe: Radio power handling
From: Marcin Bukat <marcin.bukat_at_gmail.com>
Date: Thu, 2 Feb 2012 08:56:56 +0100 > [...] To put it > differently, the power handling is completely bypassing the driver. > Currently this works because for most (if not all) devices, tuner_power does > not actually control the tuner power but the tuner chip enable or something > similar. A corollary is that tuner_power does not reset the device and the > registers. At least on MPIOs this is not true since GPIO toggled in tuner_power() drives some MOS which cuts power supply to the TEA chip. Moreover all fm chips I saw enter low power standby mode when enable line is deasserted so it CAN be seen as power related (although will preserve registers values). Marcin Received on 2012-02-02 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |