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authorLoic Poulain <loic.poulain@linaro.org>2021-11-25 20:16:15 +0300
committerMarek Vasut <marex@denx.de>2022-01-27 01:23:17 +0300
commitfc2b399ac03b91339a1cb1bfd4d1a9ca87fe95c6 (patch)
tree171f14dc3ae19d1050b10d53a7d9ae63d36fda55 /common
parent334a9b9d6aff4f0efa5eef16b8a9e204c7a6c906 (diff)
downloadu-boot-fc2b399ac03b91339a1cb1bfd4d1a9ca87fe95c6.tar.xz
usb: gadget: Add CDC ACM function
Add support for CDC ACM using the new UDC and gadget API. This protocol can be used for serial over USB data transfer and is widely supported by various OS (GNU/Linux, MS-Windows, OSX...). The usual purpose of such link is to access device debug console and can be useful for products not exposing regular UART to the user. A default stdio device named 'usbacm' is created, and can be used to redirect console to USB link over CDC ACM: > setenv stdin usbacm; setenv stdout usbacm Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Diffstat (limited to 'common')
-rw-r--r--common/stdio.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/common/stdio.c b/common/stdio.c
index 976f51c252..063c659bbc 100644
--- a/common/stdio.c
+++ b/common/stdio.c
@@ -381,6 +381,9 @@ int stdio_add_devices(void)
#ifdef CONFIG_USB_TTY
drv_usbtty_init();
#endif
+#ifdef CONFIG_USB_FUNCTION_ACM
+ drv_usbacm_init ();
+#endif
if (IS_ENABLED(CONFIG_NETCONSOLE))
drv_nc_init();
#ifdef CONFIG_JTAG_CONSOLE