Re: [PATCH 3/6] fms: Add TOC/PMA/ATIP DVD-ROM capabilities
From: Alan Stern <stern@rowland.harvard.edu>
Date: 2021-06-27 14:29:56
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- 2021-06-28 · Re: [PATCH 3/6] fms: Add TOC/PMA/ATIP DVD-ROM capabilities · Alan Stern <stern@rowland.harvard.edu>
On Sun, Jun 27, 2021 at 12:18:16AM +0300, Igor Kononenko wrote:
The DVD-ROM required the SCSI 6.25 READ TOC/PMA/ATIP Command formats: * Response Format 0000b: Formatted TOC * Response Format 0001b: Multi-session Information (MMC-6 Specification). This patch adds an implementation of that described above formats.
I will sum up the last four patches of this series by saying that they add features for emulating DVD-ROM and BD devices. Doing so increases the size of the f_mass_storage driver by a considerable amount and also adds a large amount of new material to Jens Axboe's include/uapi/linux/cdrom.h. Is any of this really needed? What usage scenarios require f_mass_storage to emulate a DVD-ROM that couldn't use f_tcm instead? Alan Stern