Antti P Miettinen <ananaza@xxxxxx> writes: > I'll try deciphering the log more later. OK, here's a little snippet more. After the GPIO settings there seems to be some I2C traffic. But again not exactly the same what the linux driver would be doing. The first packet is a control packet: c0 02 1d 02 01 84 02 00 which translates to bRequestType = 0xc0 (dir: device-to-host, type: vendor, recipient: device) bRequest = 0x02 (REQUEST_I2C_READ) wValue = 0x021d wIndex = 0x8401 wLength = 2 This almost matches I2C read but not quite. As far as I understand the dib3000mc.c and dib0700_core.c the wIndex value should always be zero for I2C reads. The dib0700_ctrl_rd sets the index from tx buffer if there is enough data but dib3000mc_read_word() seems to set up two separate i2c messages, one for write, one for read. So would this be a combined one message for those two read/write messages? And the address would be 28 and the reg would be 1025? Anyway - there's no answer data from the device to this. The next setup packet is similar: c0 02 19 02 01 84 02 00 So here the address would be 24. To this there is answer data 01 b3 which seems to be the value agains which we check in dib3000mc_identify(). But as far as I can tell dib3000mc_i2c_enumeration() requires matching aswer from all addresses 20, 22, 24 and 26? And also either 0x3001 or 0x3002 for reg 1026. Anyway - then there are three writes, if I'm interpreting correctly: - addr=24, reg=1040, val=1 - addr=24, reg=244, val=1 - addr=24, reg=1024, val=225 Then again similar reads to the above, no answer data from address 26, 0x01b3 from 24. Then three writes: - addr=24, reg=1040, val=1 - addr=24, reg=244, val=2048 - addr=24, reg=1024, val=209 Then a read (addr=28, reg=1024, answer 0x00e1), then write (addr=28, reg=1024, val=227). Then the log parsed by parser.pl shows something weird. Hmm.. need to check agains the original log.. -- http://www.iki.fi/~ananaza/ _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
