ISL3893 GPIO experiments

GPIO experiments

While trying to get the gpio lines controllable from userspace I got realy frustrated. After some module_howtos IO managed to controll the WAN led (*yeah*) all connections found are on a FSC AP600

gpio1_dr  20c2 (wr)
gpio1_st  f1ce (rd)
gpio1_ddr 20e2 (ctrl)
0010 0000 1110 0010
Bit 0 = 
Bit 1 = 
Bit 2 =  
Bit 3 = 
Bit 4 = 
Bit 5 = 
Bit 6 = 
Bit 7 = (out) TP between C7 and isl
Bit 8 = 
Bit 9 = 
Bit 10 = 
Bit 11 = 
Bit 12 = 
Bit 13 = 
Bit 14 = 
Bit 15 = (IN) Reset button

gpio2_dr  0
gpio2_st  c0f
gpio2_ddr 0
All inputs?

gpio3_dr  80
gpio3_st  b0
gpio3_ddr 8f
0000 0000 1000 1111
Bit 0 = (out) WAN LED YELLOW (r106)
Bit 1 = (out) WAN LED GREEN (r107)
Bit 2 = (out) TP between C31 and isl
Bit 3 = 
Bit 4 = 
Bit 5 = (out) TP between C23 and isl
Bit 6 = 
Bit 7 = 
Bit 8 = 
Bit 9 = 
Bit 10 = 
Bit 11 = 
Bit 12 = 
Bit 13 = 
Bit 14 = 
Bit 15 =