Messages in this thread | | | Date | Sun, 28 May 2006 22:28:34 +0159 | From | Jiri Slaby <> | Subject | Re: Stradis driver conflicts with all other SAA7146 drivers |
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matthieu castet napsal(a): > Jiri Slaby wrote: >> Christer Weinigel napsal(a): >>> Why not? There's an I2C bus with a bunch of devices on it. Isn't it >>> possible to do an I2C scan and if it doesn't match what's supposed to >>> be on the card fail the probe and release the PCI resources? >> >> This is an older method not used for device drivers, but only for >> searching for >> busses or i2c et al, of which drivers stands aside and controls the >> device. >> >>> If there is no FPGA or the FPGA fails to respond, that should also be >>> a fairly good indicator that it is not a stradis board. >> >> Yup, but pci probing doesn't have such mechanism. > Hum ? > The driver have to return an error (negative value) in the probbing > function if it detect that the card fails to respond correctly. I meant something other. Now it's clear, ignore that sentence in my reply, please. Of course, there is a mechanism how driver can tell layers upwards it can't drive the device.
regrads, - -- Jiri Slaby www.fi.muni.cz/~xslaby \_.-^-._ jirislaby@gmail.com _.-^-._/ B67499670407CE62ACC8 22A032CC55C339D47A7E -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
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