diff options
Diffstat (limited to 'hw/xfree86/i2c/xf86i2c.c')
| -rw-r--r-- | hw/xfree86/i2c/xf86i2c.c | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/hw/xfree86/i2c/xf86i2c.c b/hw/xfree86/i2c/xf86i2c.c index 494f9303b..a7f5adf1a 100644 --- a/hw/xfree86/i2c/xf86i2c.c +++ b/hw/xfree86/i2c/xf86i2c.c @@ -6,7 +6,7 @@ * (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de> */ -/* $XFree86: xc/programs/Xserver/hw/xfree86/i2c/xf86i2c.c,v 1.13 2002/09/16 18:06:07 eich Exp $ */ +/* $XFree86: xc/programs/Xserver/hw/xfree86/i2c/xf86i2c.c,v 1.15 2003/08/29 21:08:06 tsi Exp $ */ #if 1 #include "misc.h" @@ -750,7 +750,7 @@ xf86DestroyI2CBusRec(I2CBusPtr b, Bool unalloc, Bool devs_too) if (b) { I2CBusPtr *p; - /* Remove this from the list of active I2C busses. */ + /* Remove this from the list of active I2C buses */ for (p = &I2CBusList; *p != NULL; p = &(*p)->NextBus) if (*p == b) { @@ -794,7 +794,7 @@ xf86DestroyI2CBusRec(I2CBusPtr b, Bool unalloc, Bool devs_too) Bool xf86I2CBusInit(I2CBusPtr b) { - /* I2C busses must be identified by a unique scrnIndex + /* I2C buses must be identified by a unique scrnIndex * and name. If scrnIndex is unspecified (a negative value), * then the name must be unique throughout the server. */ @@ -861,3 +861,32 @@ xf86I2CFindBus(int scrnIndex, char *name) return NULL; } + +/* + * Return an array of I2CBusPtr's related to a screen. The caller is + * responsible for freeing the array. + */ +int +xf86I2CGetScreenBuses(int scrnIndex, I2CBusPtr **pppI2CBus) +{ + I2CBusPtr pI2CBus; + int n = 0; + + if (pppI2CBus) + *pppI2CBus = NULL; + + for (pI2CBus = I2CBusList; pI2CBus; pI2CBus = pI2CBus->NextBus) { + if ((pI2CBus->scrnIndex >= 0) && (pI2CBus->scrnIndex != scrnIndex)) + continue; + + n++; + + if (!pppI2CBus) + continue; + + *pppI2CBus = xnfrealloc(*pppI2CBus, n * sizeof(I2CBusPtr)); + *pppI2CBus[n - 1] = pI2CBus; + } + + return n; +} |