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authorOlivier Bornet <Olivier.Bornet@puck.ch>2009-08-18 21:05:57 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-09-23 06:46:36 -0700
commite55c6d06fead7e58b7c597fd9afc46a88ef740e6 (patch)
tree0c485e4ff930a5a7204a68447fc7bb0387b9d605 /drivers/usb/serial/iuu_phoenix.c
parent02b180665279df9de6b121ce0b4d42ce4f04c411 (diff)
USB: iuu_phoenix: add a way to select the default VCC
Using the module parameter vcc_default, you can choose the default VCC value. Signed-off-by: Olivier Bornet <Olivier.Bornet@puck.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/iuu_phoenix.c')
-rw-r--r--drivers/usb/serial/iuu_phoenix.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 0b1a74e7be50..e6e02b178d2b 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -64,6 +64,7 @@ static int cdmode = 1;
static int iuu_cardin;
static int iuu_cardout;
static int xmas;
+static int vcc_default = 5;
static void read_rxcmd_callback(struct urb *urb);
@@ -115,7 +116,7 @@ static int iuu_startup(struct usb_serial *serial)
kfree(priv);
return -ENOMEM;
}
- priv->vcc = 5; /* 5 V for vcc by default */
+ priv->vcc = vcc_default;
spin_lock_init(&priv->lock);
init_waitqueue_head(&priv->delta_msr_wait);
usb_set_serial_port_data(serial->port[0], priv);
@@ -1339,3 +1340,7 @@ MODULE_PARM_DESC(clockmode, "Card clock mode (1=3.579 MHz, 2=3.680 MHz, "
module_param(cdmode, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(cdmode, "Card detect mode (0=none, 1=CD, 2=!CD, 3=DSR, "
"4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING)");
+
+module_param(vcc_default, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(vcc_default, "Set default VCC (either 3 for 3.3V or 5 "
+ "for 5V). Default to 5.");