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USB: ssu100: add register parameter to ssu100_setregister

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The function ssu100_setregister was hard coded to only set the MCR
register.  Add a register parameter so that other registers can be
set.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Bill Pemberton 2010-08-05 17:01:08 -04:00 committed by Greg Kroah-Hartman
parent 79f203a26a
commit 556f1a0e9c
1 changed files with 4 additions and 3 deletions
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7
drivers/usb/serial/ssu100.c
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@ -127,9 +127,10 @@ static inline int ssu100_getregister(struct usb_device *dev,
static inline int ssu100_setregister(struct usb_device *dev,
unsigned short uart,
unsigned short reg,
u16 data)
{
u16 value = (data << 8) | UART_MCR;
u16 value = (data << 8) | reg;
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
QT_SET_GET_REGISTER, 0x40, value, uart,
@ -159,7 +160,7 @@ static inline int update_mctrl(struct usb_device *dev, unsigned int set,
if (set & TIOCM_RTS)
urb_value |= UART_MCR_RTS;
result = ssu100_setregister(dev, 0, urb_value);
result = ssu100_setregister(dev, 0, UART_MCR, urb_value);
if (result < 0)
dbg("%s Error from MODEM_CTRL urb", __func__);
@ -529,7 +530,7 @@ static void ssu100_dtr_rts(struct usb_serial_port *port, int on)
if (!port->serial->disconnected) {
/* Disable flow control */
if (!on &&
ssu100_setregister(dev, 0, 0) < 0)
ssu100_setregister(dev, 0, UART_MCR, 0) < 0)
dev_err(&port->dev, "error from flowcontrol urb\n");
/* drop RTS and DTR */
if (on)