diff options
Diffstat (limited to 'drivers/usb/serial/mos7840.c')
| -rw-r--r-- | drivers/usb/serial/mos7840.c | 43 |
1 files changed, 26 insertions, 17 deletions
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 2c20e88a91b..84fb1dcd30d 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -38,7 +38,7 @@ /* * Version Information */ -#define DRIVER_VERSION "1.3.1" +#define DRIVER_VERSION "1.3.2" #define DRIVER_DESC "Moschip 7840/7820 USB Serial Driver" /* @@ -123,6 +123,11 @@ #define BANDB_DEVICE_ID_USOPTL4_4 0xAC44 #define BANDB_DEVICE_ID_USOPTL4_2 0xAC42 +/* This driver also supports the ATEN UC2324 device since it is mos7840 based + * - if I knew the device id it would also support the ATEN UC2322 */ +#define USB_VENDOR_ID_ATENINTL 0x0557 +#define ATENINTL_DEVICE_ID_UC2324 0x2011 + /* Interrupt Routine Defines */ #define SERIAL_IIR_RLS 0x06 @@ -170,6 +175,7 @@ static struct usb_device_id moschip_port_id_table[] = { {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)}, {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)}, {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)}, + {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2324)}, {} /* terminating entry */ }; @@ -178,6 +184,7 @@ static __devinitdata struct usb_device_id moschip_id_table_combined[] = { {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)}, {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)}, {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)}, + {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2324)}, {} /* terminating entry */ }; @@ -1000,12 +1007,6 @@ static int mos7840_open(struct tty_struct *tty, status = mos7840_set_reg_sync(port, mos7840_port->ControlRegOffset, Data); - /* force low_latency on so that our tty_push actually forces * - * the data through,otherwise it is scheduled, and with * - * high data rates (like with OHCI) data can get lost. */ - if (tty) - tty->low_latency = 1; - /* Check to see if we've set up our endpoint info yet * * (can't set it up in mos7840_startup as the structures * * were not set up at that time.) */ @@ -2477,9 +2478,14 @@ static int mos7840_startup(struct usb_serial *serial) mos7840_set_port_private(serial->port[i], mos7840_port); spin_lock_init(&mos7840_port->pool_lock); - mos7840_port->port_num = ((serial->port[i]->number - - (serial->port[i]->serial->minor)) + - 1); + /* minor is not initialised until later by + * usb-serial.c:get_free_serial() and cannot therefore be used + * to index device instances */ + mos7840_port->port_num = i + 1; + dbg ("serial->port[i]->number = %d", serial->port[i]->number); + dbg ("serial->port[i]->serial->minor = %d", serial->port[i]->serial->minor); + dbg ("mos7840_port->port_num = %d", mos7840_port->port_num); + dbg ("serial->minor = %d", serial->minor); if (mos7840_port->port_num == 1) { mos7840_port->SpRegOffset = 0x0; @@ -2690,13 +2696,16 @@ static void mos7840_shutdown(struct usb_serial *serial) for (i = 0; i < serial->num_ports; ++i) { mos7840_port = mos7840_get_port_private(serial->port[i]); - spin_lock_irqsave(&mos7840_port->pool_lock, flags); - mos7840_port->zombie = 1; - spin_unlock_irqrestore(&mos7840_port->pool_lock, flags); - usb_kill_urb(mos7840_port->control_urb); - kfree(mos7840_port->ctrl_buf); - kfree(mos7840_port->dr); - kfree(mos7840_port); + dbg ("mos7840_port %d = %p", i, mos7840_port); + if (mos7840_port) { + spin_lock_irqsave(&mos7840_port->pool_lock, flags); + mos7840_port->zombie = 1; + spin_unlock_irqrestore(&mos7840_port->pool_lock, flags); + usb_kill_urb(mos7840_port->control_urb); + kfree(mos7840_port->ctrl_buf); + kfree(mos7840_port->dr); + kfree(mos7840_port); + } mos7840_set_port_private(serial->port[i], NULL); } |