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Vregs
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The following table lists nodes in /dbgfs/vregs, what happens when you write 0 to them, and what we know about them.
This testing was performed on a RAPH110/ATT Fuze.
| vreg name | test result | purpose in code | htc-linux wiki |
|---|---|---|---|
| boost | safe | unknown | |
| gp1 | safe | unknown (bzo: cam) | |
| gp2 | safe | mddi link (bzo: cam) | ? |
| gp3 | safe | unknown (bzo: cam) | usb |
| gp4 | kills i2c | lcm ? (backlight module) | |
| gp5 | safe | unknown | |
| gp6 | safe (shuts down MMC, not really safe on our setup) | sdslot | |
| mmc | safe | unknown | |
| mpll | safe | unknown | |
| msma | reboot | unknown | |
| msmc0 | safe | unknown | |
| msmc1 | freeze | unknown | |
| msmc2 | freeze | unknown | screen |
| msme1 | reboot | Some wifi reg | sd |
| msme2 | safe | unknown | |
| msmp | poweroff | unknown | |
| ncp | safe | unknown | |
| pa | safe | unknown | screen |
| rf | safe | unknown | |
| rf_vco | safe | unknown | |
| rfrx1 | safe | unknown | wifi stuff |
| rfrx2 | scrambles display, system stays alive | unknown | wifi stuff |
| rftx | display fades to black, system stays alive. echo 1 restores screen | wifi stuff on topaz | screen |
| rfubm | safe | unknown | |
| ruim | safe | unknown | |
| s2 | safe | unknown | |
| s3 | safe | unknown | |
| synt | safe | unknown | |
| tcxo | safe | unknown | screen |
| usb | safe | unknown | |
| wlan | safe | unknown (bzo: cam) |
