[PATCH] ppc64 iSeries: make virtual DVD-RAMs writable again (9db29258) · Commits · 戴 / test

It appears that another test has been added in the Uniform CDROM layer that must be passed before a DVD-RAM is considered writeable. This patch implements an emulation of the needed packet command for the viocd driver. Signed-off-by:

Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:

Andrew Morton <akpm@osdl.org> Signed-off-by:

Linus Torvalds <torvalds@osdl.org>

drivers/cdrom/viocd.c

+14 −0

Original line number	Diff line number	Diff line
		@@ -488,6 +488,20 @@ static int viocd_packet(struct cdrom_device_info *cdi,
		& (CDC_DVD_RAM \| CDC_RAM)) != 0;
		}
		break;
		case GPCMD_GET_CONFIGURATION:
		if (cgc->cmd[3] == CDF_RWRT) {
		struct rwrt_feature_desc rfd = (struct rwrt_feature_desc )(cgc->buffer + sizeof(struct feature_header));

		if ((buflen >=
		(sizeof(struct feature_header) + sizeof(*rfd))) &&
		(cdi->ops->capability & ~cdi->mask
		& (CDC_DVD_RAM \| CDC_RAM))) {
		rfd->feature_code = cpu_to_be16(CDF_RWRT);
		rfd->curr = 1;
		ret = 0;
		}
		}
		break;
		default:
		if (cgc->sense) {
		/* indicate Unknown code */

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