[PATCH] mountmgr: Map ttyACM devices to COM ports on Linux.

[Alex Henrie]

Signed-off-by: Alex Henrie <alexhenrie24 at gmail.com>
---
Related to https://bugs.winehq.org/show_bug.cgi?id=43750

After reading up on it, it looks like the only difference between ttyUSB
and ttyACM devices is that ttyUSB devices have a dedicated UART whereas
ttyACM devices have a dedicated USB chip.[1] Apart from exactly which
bit of the stack is being hardware-accelerated, there's no difference.

The existence of Windows applications that expect this kind of device to
appear as a COM port is further proof that Wine should assign them COM
port numbers automatically.

[1] https://rfc1149.net/blog/2013/03/05/what-is-the-difference-between-devttyusbx-and-devttyacmx/
---
 dlls/mountmgr.sys/device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/mountmgr.sys/device.c b/dlls/mountmgr.sys/device.c
index 20c96d002b..1437bfc853 100644
--- a/dlls/mountmgr.sys/device.c
+++ b/dlls/mountmgr.sys/device.c
@@ -1085,6 +1085,7 @@ static void create_port_devices( DRIVER_OBJECT *driver )
 #ifdef linux
         "/dev/ttyS%u",
         "/dev/ttyUSB%u",
+        "/dev/ttyACM%u",
 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
         "/dev/cuau%u",
 #elif defined(__DragonFly__)
-- 
2.14.2