SG(4) Kernel Interfaces Manual SG(4) NAME sg -- Linux ioctl-compatible SCSI passthru device SYNOPSIS device sg device scbus DESCRIPTION The sg driver provides a Linux compatible scsi passthru device. This dri- ver attaches to all cam(4) peripheral devices. It is similar to the pass(4) device, but uses the Linux interfaces, rather than the FreeBSD CAM interfaces. IOCTL The following subset of the Linux sg ioctl interfaces are implemented: SG_SET_TIMEOUT u_int to Set the timeout in milliseconds. SG_GET_TIMEOUT Get the timeout in milliseconds SG_GET_RESERVED_SIZE u_int Returns the size of the I/O one can do this device. SG_GET_SCSI_ID struct sg_scsi_id Returns the bus number, channel, scsi bus ID number, lun and other information about the SCSI device. SG_GET_SG_TABLESIZE u_int Returns the table size, though hard wired to 0. SG_GET_VERSION_NUM u_int Return the version number that is implemented. SG_IO struct sg_io_hdr All other ioctl interfaces return ENODEV. FILES /dev/sg* Passthru devices. SEE ALSO cam(4), pass(4) HISTORY The sg driver first appeared in FreeBSD 7.0. FreeBSD 15.1 May 6, 2024 SG(4)
NAME | SYNOPSIS | DESCRIPTION | IOCTL | FILES | SEE ALSO | HISTORY
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