Perry Gilfillan wrote: > Mark Studebaker wrote: > >> It's definitely a PCI registration conflict. > > > Then there are three drivers wanting access to the Voodoo3 PCI > registers: tdfxfb, i2c-voodoo3, and v3tv. > > It's posible that v3tv and tdfxfb will touch the same registers and > break each others functions. I've thought about merging them, but don't > know that I've got the ability to do it right. > > As Jean indicates that the matroxfb and radeonfb drivers have the DDC > adapter merged, I take it merging i2c and posibly v3tv into tdfxfb might > be acceptable? > > I guess it's the only way to do it, right? Don't know what the v3tv people think. >> I have a modified driver that doesn't do PCI registration, and it works, >> and even more interesting, when I load the driver I get: >> >> i2c-voodoo3.o version mds (mds) >> i2c-voodoo3.o found device >> tdfxfb 0000:01:05.0: Using Banshee/Voodoo3 I2C device at cb870000 >> >> I'll add a note on the 2.6 kernel info page about voodoo. > > > Did you do anything more than copy the pci_for_each_dev macro? > correct. You can look at 2.4 kernel version of i2c-voodoo3 in lm_sensors to see. I just ported that over to 2.6 to test it. >> >> Jean Delvare wrote: >> >>> I suspect that you have another driver requesting the card, such has a >>> framebuffer driver. The 2.4 driver doesn't request the device so no >>> conflict happens. The 2.6 driver does request it, because it is >>> considered Bad (TM) to use a device without requesting it. This probably >>> means that the i2c-voodoo3 driver should me merged into the framebuffer >>> driver, much like it was done for matroxfb and radeonfb. This also makes >>> sense because the framebuffer driver can use the DDC channel (which is >>> no more than I2C, renamed) to retrieve information about the monitor and >>> adapt its output. But this also raises the problem that people may want >>> to access the i2c busses without loading the full framebuffer driver... > > > > Thanks, > > Perry > ------ > Gilfillan Family: http://www.gilfillan.org/ > > Projects: > V3TV: http://www.gilfillan.org/v3tv/ > VPX3224: http://www.gilfillan.org/vpx3224/ > V3TV-radio: http://www.gilfillan.org/v3tv-v4l2/ > snd-tvmixer: http://www.gilfillan.org/ALSA/ > > >
