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| author | Daniel Mack <daniel@caiaq.de> | 2010-06-03 13:55:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-06-04 22:16:19 +0200 |
| commit | 6a1a82df91fa0eb1cc76069a9efe5714d087eccd (patch) | |
| tree | 960e24f709aaf0101a831000a70d194bbc5bdf4c /drivers/usb/class/cdc-acm.c | |
| parent | USB: s3c-hsotg: Ensure FIFOs are fully flushed after layout (diff) | |
| download | linux-6a1a82df91fa0eb1cc76069a9efe5714d087eccd.tar.xz linux-6a1a82df91fa0eb1cc76069a9efe5714d087eccd.zip | |
USB: ftdi_sio: fix DTR/RTS line modes
Call set_mctrl() and clear_mctrl() according to the flow control mode
selected. This makes serial communication for FT232 connected devices
work when CRTSCTS is not set.
This fixes a regression introduced by 4175f3e31 ("tty_port: If we are
opened non blocking we still need to raise the carrier"). This patch
calls the low-level driver's dtr_rts() function which consequently sets
TIOCM_DTR | TIOCM_RTS. A later call to set_termios() without CRTSCTS in
cflags, however, does not reset these bits, and so data is not actually
sent out on the serial wire.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Johan Hovold <jhovold@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
0 files changed, 0 insertions, 0 deletions