On Sun, 2015-12-27 at 21:30 +0100, Wilfried Weissmann wrote: > Am 27.12.15 um 20:42 schrieb James Bottomley: > > On Sun, 2015-12-27 at 20:21 +0100, Wilfried Weissmann wrote: > > > add SGPIO support to Marvell 94xx > > > > How do you actually use this? It doesn't seem to be plumbed into > > the > > standard GPIO subsystem and there appears to be no user accessible > > interface for it either (nor is it used internally). > > > > There doesn't appear to be much point adding an unusable feature. > > sas_domain_function_template.lldd_write_gpio exposes the interface to > libsas. Userspace access is then done via ioctl(SG_IO,...). Existing > user space tools such as ledmon use this method, also smp_utils in > case you want to have more direct control.
Ah, right, I'd forgotten that got added. Reviewed-by: James Bottomley <james.bottom...@hansenpartnership.com> Thanks, James -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
