From 9db29258893b08a838e5ecfa4a0933c9c1f2e305 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Fri, 27 May 2005 12:52:58 -0700 Subject: [PATCH] [PATCH] ppc64 iSeries: make virtual DVD-RAMs writable again 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/cdrom/viocd.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c index fcca26c89b..38dd9ffbe8 100644 --- a/drivers/cdrom/viocd.c +++ b/drivers/cdrom/viocd.c @@ -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 */ -- 2.39.5