Messages in this thread | | | Date | Wed, 21 Jun 2006 22:38:34 +0200 (CEST) | From | Bodo Eggert <> | Subject | Re: [linux-usb-devel] USB/hal: USB open() broken? (USB CD burner underruns, USB HDD hard resets) |
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On Wed, 21 Jun 2006, Andreas Mohr wrote:
[...] > And the obvious question would be whether the sdkp->openers++ thingy > could somehow be extended to enclose all hardware device users so that > e.g. sr.c wouldn't send ALLOW_MEDIUM_REMOVAL on a device already locked > by e.g. the sd.c driver. > Difficult question, though, since the group of drivers possible to use > with a certain device is not a static set: > it could be via > - sr.c > - sd.c > - IDE (in the case of ATA devices mapped via ide-scsi)
> Is it possible to have such a per-*hardware*-device instance in the kernel > to keep track of various things such as number of device openers? > I'll do some investigation myself, too...
The sg part should be implemented by each SCSI device, reducing the current sg device to a mostly empty shell. Then you can prevent that empty shell from binding to devices having more specific drivers. -- Top 100 things you don't want the sysadmin to say: 30. And what does it mean 'rm: .o: No such file or directory'? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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