aboutsummaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
Diffstat (limited to 'include')
-rw-r--r--include/linux/tty.h10
-rw-r--r--include/linux/usb.h18
-rw-r--r--include/linux/vt.h3
3 files changed, 20 insertions, 11 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 568369a86306..4409967db0c4 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -70,12 +70,13 @@ struct tty_buffer {
70 70
71/* 71/*
72 * We default to dicing tty buffer allocations to this many characters 72 * We default to dicing tty buffer allocations to this many characters
73 * in order to avoid multiple page allocations. We assume tty_buffer itself 73 * in order to avoid multiple page allocations. We know the size of
74 * is under 256 bytes. See tty_buffer_find for the allocation logic this 74 * tty_buffer itself but it must also be taken into account that the
75 * must match 75 * the buffer is 256 byte aligned. See tty_buffer_find for the allocation
76 * logic this must match
76 */ 77 */
77 78
78#define TTY_BUFFER_PAGE ((PAGE_SIZE - 256) / 2) 79#define TTY_BUFFER_PAGE (((PAGE_SIZE - sizeof(struct tty_buffer)) / 2) & ~0xFF)
79 80
80 81
81struct tty_bufhead { 82struct tty_bufhead {
@@ -223,6 +224,7 @@ struct tty_port {
223 wait_queue_head_t close_wait; /* Close waiters */ 224 wait_queue_head_t close_wait; /* Close waiters */
224 wait_queue_head_t delta_msr_wait; /* Modem status change */ 225 wait_queue_head_t delta_msr_wait; /* Modem status change */
225 unsigned long flags; /* TTY flags ASY_*/ 226 unsigned long flags; /* TTY flags ASY_*/
227 unsigned char console:1; /* port is a console */
226 struct mutex mutex; /* Locking */ 228 struct mutex mutex; /* Locking */
227 struct mutex buf_mutex; /* Buffer alloc lock */ 229 struct mutex buf_mutex; /* Buffer alloc lock */
228 unsigned char *xmit_buf; /* Optional buffer */ 230 unsigned char *xmit_buf; /* Optional buffer */
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 8c9f053111bb..ce1323c4e47c 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1055,7 +1055,8 @@ typedef void (*usb_complete_t)(struct urb *);
1055 * @number_of_packets: Lists the number of ISO transfer buffers. 1055 * @number_of_packets: Lists the number of ISO transfer buffers.
1056 * @interval: Specifies the polling interval for interrupt or isochronous 1056 * @interval: Specifies the polling interval for interrupt or isochronous
1057 * transfers. The units are frames (milliseconds) for full and low 1057 * transfers. The units are frames (milliseconds) for full and low
1058 * speed devices, and microframes (1/8 millisecond) for highspeed ones. 1058 * speed devices, and microframes (1/8 millisecond) for highspeed
1059 * and SuperSpeed devices.
1059 * @error_count: Returns the number of ISO transfers that reported errors. 1060 * @error_count: Returns the number of ISO transfers that reported errors.
1060 * @context: For use in completion functions. This normally points to 1061 * @context: For use in completion functions. This normally points to
1061 * request-specific driver context. 1062 * request-specific driver context.
@@ -1286,9 +1287,16 @@ static inline void usb_fill_bulk_urb(struct urb *urb,
1286 * 1287 *
1287 * Initializes a interrupt urb with the proper information needed to submit 1288 * Initializes a interrupt urb with the proper information needed to submit
1288 * it to a device. 1289 * it to a device.
1289 * Note that high speed interrupt endpoints use a logarithmic encoding of 1290 *
1290 * the endpoint interval, and express polling intervals in microframes 1291 * Note that High Speed and SuperSpeed interrupt endpoints use a logarithmic
1291 * (eight per millisecond) rather than in frames (one per millisecond). 1292 * encoding of the endpoint interval, and express polling intervals in
1293 * microframes (eight per millisecond) rather than in frames (one per
1294 * millisecond).
1295 *
1296 * Wireless USB also uses the logarithmic encoding, but specifies it in units of
1297 * 128us instead of 125us. For Wireless USB devices, the interval is passed
1298 * through to the host controller, rather than being translated into microframe
1299 * units.
1292 */ 1300 */
1293static inline void usb_fill_int_urb(struct urb *urb, 1301static inline void usb_fill_int_urb(struct urb *urb,
1294 struct usb_device *dev, 1302 struct usb_device *dev,
@@ -1305,7 +1313,7 @@ static inline void usb_fill_int_urb(struct urb *urb,
1305 urb->transfer_buffer_length = buffer_length; 1313 urb->transfer_buffer_length = buffer_length;
1306 urb->complete = complete_fn; 1314 urb->complete = complete_fn;
1307 urb->context = context; 1315 urb->context = context;
1308 if (dev->speed == USB_SPEED_HIGH) 1316 if (dev->speed == USB_SPEED_HIGH || dev->speed == USB_SPEED_SUPER)
1309 urb->interval = 1 << (interval - 1); 1317 urb->interval = 1 << (interval - 1);
1310 else 1318 else
1311 urb->interval = interval; 1319 urb->interval = interval;
diff --git a/include/linux/vt.h b/include/linux/vt.h
index 778b7b2a47d4..d5dd0bc408fd 100644
--- a/include/linux/vt.h
+++ b/include/linux/vt.h
@@ -27,7 +27,7 @@ struct vt_mode {
27#define VT_SETMODE 0x5602 /* set mode of active vt */ 27#define VT_SETMODE 0x5602 /* set mode of active vt */
28#define VT_AUTO 0x00 /* auto vt switching */ 28#define VT_AUTO 0x00 /* auto vt switching */
29#define VT_PROCESS 0x01 /* process controls switching */ 29#define VT_PROCESS 0x01 /* process controls switching */
30#define VT_PROCESS_AUTO 0x02 /* process is notified of switching */ 30#define VT_ACKACQ 0x02 /* acknowledge switch */
31 31
32struct vt_stat { 32struct vt_stat {
33 unsigned short v_active; /* active vt */ 33 unsigned short v_active; /* active vt */
@@ -38,7 +38,6 @@ struct vt_stat {
38#define VT_SENDSIG 0x5604 /* signal to send to bitmask of vts */ 38#define VT_SENDSIG 0x5604 /* signal to send to bitmask of vts */
39 39
40#define VT_RELDISP 0x5605 /* release display */ 40#define VT_RELDISP 0x5605 /* release display */
41#define VT_ACKACQ 0x02 /* acknowledge switch */
42 41
43#define VT_ACTIVATE 0x5606 /* make vt active */ 42#define VT_ACTIVATE 0x5606 /* make vt active */
44#define VT_WAITACTIVE 0x5607 /* wait for vt active */ 43#define VT_WAITACTIVE 0x5607 /* wait for vt active */