results for GPS/uSD-"fix" via uSDclk-throttling

Joerg Reisenweber joerg at openmoko.org
Sun Aug 16 19:36:34 CEST 2009


device rev: A7
hw-fix (cap on uSD): by default

dd if=/dev/mmcblk0p1 of=/dev/null -> 
sat sig drop: ~5dB
during dd

echo 1 >/sys/module/glamo_mci/parameters/sd_slow_ratio
dd...
sat sig drop: ~4dB

conclusion:
Don't want /sys/module/glamo_mci/parameters/sd_slow_ratio=8 for A7
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