diff options
Diffstat (limited to 'usb-serial-increase-the-number-of-devices-we-support.patch')
| -rw-r--r-- | usb-serial-increase-the-number-of-devices-we-support.patch | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/usb-serial-increase-the-number-of-devices-we-support.patch b/usb-serial-increase-the-number-of-devices-we-support.patch deleted file mode 100644 index c41f28993467e1..00000000000000 --- a/usb-serial-increase-the-number-of-devices-we-support.patch +++ /dev/null @@ -1,76 +0,0 @@ -From foo@baz Wed Jun 5 10:45:16 PDT 2013 -Date: Wed, 05 Jun 2013 10:45:16 -0700 -To: Greg KH <gregkh@linuxfoundation.org> -From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -Subject: [PATCH v2 3/3] USB: serial: increase the number of devices we support - -We had the limit of 255 USB to serial devices on one system for almost -15 years, with no complaints. But now it's time to move on from these -tiny "baby" systems, and bump the number up to 512, which should last -us a few more years: - "512 is a nice number" -- Tobias Winter - -Note, this is still a static value, and uses up tty core memory with -this many tty devices allocated. Converting the driver to use -TTY_DRIVER_DYNAMIC_DEV is the next thing to do in order to remove this -limitation. - -Reported-by: Tobias Winter <tobias@linuxdingsda.de> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> - ---- - drivers/usb/serial/usb-serial.c | 9 ++++++--- - include/linux/usb/serial.h | 3 --- - 2 files changed, 6 insertions(+), 6 deletions(-) - ---- a/drivers/usb/serial/usb-serial.c -+++ b/drivers/usb/serial/usb-serial.c -@@ -43,6 +43,9 @@ - #define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@linuxfoundation.org>" - #define DRIVER_DESC "USB Serial Driver core" - -+#define USB_SERIAL_TTY_MAJOR 188 -+#define USB_SERIAL_TTY_MINORS 512 /* should be enough for a while */ -+ - /* There is no MODULE_DEVICE_TABLE for usbserial.c. Instead - the MODULE_DEVICE_TABLE declarations in each serial driver - cause the "hotplug" program to pull in whatever module is necessary -@@ -449,7 +452,7 @@ static int serial_proc_show(struct seq_f - char tmp[40]; - - seq_puts(m, "usbserinfo:1.0 driver:2.0\n"); -- for (i = 0; i < SERIAL_TTY_MINORS; ++i) { -+ for (i = 0; i < USB_SERIAL_TTY_MINORS; ++i) { - port = usb_serial_port_get_by_minor(i); - if (port == NULL) - continue; -@@ -1217,7 +1220,7 @@ static int __init usb_serial_init(void) - { - int result; - -- usb_serial_tty_driver = alloc_tty_driver(SERIAL_TTY_MINORS); -+ usb_serial_tty_driver = alloc_tty_driver(USB_SERIAL_TTY_MINORS); - if (!usb_serial_tty_driver) - return -ENOMEM; - -@@ -1230,7 +1233,7 @@ static int __init usb_serial_init(void) - - usb_serial_tty_driver->driver_name = "usbserial"; - usb_serial_tty_driver->name = "ttyUSB"; -- usb_serial_tty_driver->major = SERIAL_TTY_MAJOR; -+ usb_serial_tty_driver->major = USB_SERIAL_TTY_MAJOR; - usb_serial_tty_driver->minor_start = 0; - usb_serial_tty_driver->type = TTY_DRIVER_TYPE_SERIAL; - usb_serial_tty_driver->subtype = SERIAL_TYPE_NORMAL; ---- a/include/linux/usb/serial.h -+++ b/include/linux/usb/serial.h -@@ -19,9 +19,6 @@ - #include <linux/sysrq.h> - #include <linux/kfifo.h> - --#define SERIAL_TTY_MAJOR 188 /* Nice legal number now */ --#define SERIAL_TTY_MINORS 254 /* loads of devices :) */ -- - /* The maximum number of ports one device can grab at once */ - #define MAX_NUM_PORTS 8 - |