[PATCH RESEND] usb: gadget: f_mass_storage: Make CD-ROM emulation works with Windows OS

From: Neal Liu
Date: Thu Jun 23 2022 - 00:48:14 EST


Add read TOC with format 2 to support CD-ROM emulation with
Windows OS.
This patch is tested on Windows OS Server 2019.

Signed-off-by: Neal Liu <neal_liu@xxxxxxxxxxxxxx>
---
drivers/usb/gadget/function/f_mass_storage.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 3a77bca0ebe1..3c2a5f1e8b66 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -1209,6 +1209,7 @@ static int do_read_toc(struct fsg_common *common, struct fsg_buffhd *bh)

switch (format) {
case 0:
+ case 1:
/* Formatted TOC */
len = 4 + 2*8; /* 4 byte header + 2 descriptors */
memset(buf, 0, len);
--
2.25.1