Messages in this thread | | | Date | Wed, 17 Oct 2007 08:38:34 +0200 (CEST) | From | Geert Uytterhoeven <> | Subject | Re: ioctl32: Unknown cmd |
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On Tue, 16 Oct 2007, Arnd Bergmann wrote: > On Tuesday 16 October 2007, Geert Uytterhoeven wrote: > > The recent (post 2.6.23) changes to compat_ioctl made the reporting of > > unsupported ioctls more verbose. E.g. on the PS3 I get: > > > > | ioctl32(cdrom_id:608): Unknown cmd fd(3) cmd(00005331){t:'S';sz:0} arg(00000000) on /dev/.tmp-11-0 > > | ioctl32(hdparm:1427): Unknown cmd fd(3) cmd(0000031f){t:03;sz:0} arg(00000000) on /dev/ps3da > > | ioctl32(hdparm:1427): Unknown cmd fd(3) cmd(0000031f){t:03;sz:0} arg(00000000) on /dev/ps3da > > > > The first one is triggered by the detection of the CD/DVD/BD-ROM driver, > > The others are triggered by me running hdparm. > > > > Was this intentional? > > No, it was certainly not intentional, and I can't figure out why it happens. > The ioctl numbers from your example are HDIO_DRIVE_CMD and CDROM_GET_CAPABILITY, > both of which should be handled through compat_blkdev_driver_ioctl by calling > the native ioctl method of the driver, and return -ENOTTY otherwise. > > The one point where it is expected to have changed now is when you try > to do these ioctls on something that is not a block device. Are you sure that > the files you tried them on were created correctly?
/dev/ps3da is definitely a block device.
With kind regards,
Geert Uytterhoeven Software Architect
Sony Network and Software Technology Center Europe The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium
Phone: +32 (0)2 700 8453 Fax: +32 (0)2 700 8622 E-mail: Geert.Uytterhoeven@sonycom.com Internet: http://www.sony-europe.com/
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