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path: root/drivers/video/fbsysfs.c
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* Revert "fb: Initialize fb_info mutexes in framebuffer_alloc()"Linus Torvalds2009-07-081-3/+0Star
| | | | | | | | | | This reverts commit 4148df9b0f38bdd362dd91d52076926c11cbe5a9. Let's hope that the mm_lock initialization is now correct with all drivers, following Krzysztof's patches. Requested-by: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fb: Initialize fb_info mutexes in framebuffer_alloc()Paul Mundt2009-07-061-0/+3
| | | | | | | | | | | This way they'll be properly initialized early enough for users that may touch them before the framebuffer has been registered. Drivers that allocate their fb_info structure some other way (like matrocfb's broken static allocation) need to be fixed up appropriately. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fbdev: fix obvious bug in show_pan()Antonino A. Daplas2007-05-081-1/+1
| | | | | | | | | show_pan will display the value of the xoffset twice, instead of the xoffset and yoffset. Fix. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* backlight: Rework backlight/fb interaction simplifying, lotsRichard Purdie2007-02-201-5/+9
| | | | | | | | | | | | | | | | | fb_info->bl_mutex is badly thought out and the backlight class doesn't need it if the framebuffer/backlight register/unregister order is consistent, particularly after the backlight locking fixes. Fix the drivers to use the order: backlight_device_register() register_framebuffer() unregister_framebuffer() backlight_device_unregister() and turn bl_mutex into a lock for the bl_curve data only. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* [PATCH] fbdev modedb: make more pointer parameters constGeert Uytterhoeven2007-02-121-1/+1
| | | | | | | | | | | fbdev modedb: make more input and output pointer parameters const Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: James Simmons <jsimmons@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Driver core: convert fb code to use struct deviceGreg Kroah-Hartman2006-12-011-72/+91
| | | | | | | | | Converts from using struct "class_device" to "struct device" making everything show up properly in /sys/devices/ with symlinks from the /sys/class directory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] fbdev: Honor the return value of device_create_fileAntonino A. Daplas2006-10-031-7/+28
| | | | | | | | | Check the return value of device_create_file(). If return is 'fail', remove attributes by calling device_remove_file(). Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] backlight: fix oops in __mutex_lock_slowpath during head ↵Michael Hanselmann2006-09-261-0/+12
| | | | | | | | | | | | | | | | /sys/class/graphics/fb0/* Seems like not all drivers use the framebuffer_alloc() function and won't have an initialized mutex. But those don't have a backlight, anyway. Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Cc: Olaf Hering <olaf@aepfle.de> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Daniel R Thompson <daniel.thompson@st.com> Cc: Jon Smirl <jonsmirl@gmail.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Detaching fbcon: sdd sysfs class device entry for fbconAntonino A. Daplas2006-06-261-41/+0Star
| | | | | | | | | | | | | | | | In order for this feature to work, an interface will be needed. The most appropriate is sysfs. However, the framebuffer console has no sysfs entry yet. This will create a sysfs class device entry for fbcon under /sys/class/graphics. Add a class_device entry 'fbcon' under class 'graphics'. Console-specific attributes which where previously under class/graphics/fb[x] are moved to class/graphics/fbcon. These attributes, 'con_rotate' and 'con_rotate_all', are also renamed to 'rotate' and 'rotate_all' respectively. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: tag by scantype in sysfsDaniel R Thompson2006-06-261-1/+10
| | | | | | | | | | | | Modify the sysfs description of a video mode such that modes are tagged with their scan type, (p)rogessive, (i)nterlaced, (d)ouble scan. For example, U:1920x1080i-50. This is useful to disambiguate some of the 'consumer' video timings found in CEA-861 (especially those for EDTV). Signed-off-by: Daniel R Thompson <daniel.thompson@st.com> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Rewritten backlight infrastructure for portable Apple computersMichael Hanselmann2006-06-251-0/+88
| | | | | | | | | | | | | | | | This patch contains a total rewrite of the backlight infrastructure for portable Apple computers. Backward compatibility is retained. A sysfs interface allows userland to control the brightness with more steps than before. Userland is allowed to upload a brightness curve for different monitors, similar to Mac OS X. [akpm@osdl.org: add needed exports] Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Frame buffer: remove cmap sysfs interfaceJon Smirl2006-04-271-89/+3Star
| | | | | | Remove it as it does not work properly due to sysfs core changes. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] framebuffer: cmap-setting return valuesAlan Curry2006-03-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | A set of 3 small bugfixes, all of which are related to bogus return values of fb colormap-setting functions. First, fb_alloc_cmap returns -1 if memory allocation fails. This is a hard condition to reproduce since you'd have to be really low on memory, but from studying the contexts in which it is called, I think this function should be returning a negative errno, and the -1 will be seen as an EPERM. Switching it to -ENOMEM makes sense. Second, the store_cmap function which is called for writes to /sys/class/graphics/fb0/color_map returns 0 for success, but it should be returning the count of bytes written since its return value ends up in userspace as the result of the write() syscall. Third, radeonfb returns 1 instead of a negative errno when FBIOPUTCMAP is called with an oversized colormap. This is seen in userspace as a return value of 1 from the ioctl() syscall with errno left unchanged. A more useful return value would be -EINVAL. Signed-off-by: Alan Curry <pacman@TheWorld.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: Replace kmalloc with kzallocAntonino A. Daplas2006-01-101-2/+3
| | | | | | | | Replace kmalloc with kzalloc Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: fbdev: CleanupAntonino A. Daplas2006-01-101-33/+20Star
| | | | | | | | - remove unneeded casts Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Add sysfs entry to disable framebuffer accessMatthew Garrett2006-01-101-0/+23
| | | | What
* [PATCH] fbcon: Console Rotation - Add ability to control rotation via sysfsAntonino A. Daplas2005-11-091-0/+67
| | | | | | | | | | | | | | | | | | | | | | Add ability to set rotation via sysfs. The attributes are located in /sys/class/graphics/fb[n] and accepts 0 - unrotated; 1 - clockwise; 2 - upside down; 3 - counterclockwise. The attributes are: con_rotate (r/w) - set rotation of the active console con_rotate_all (w) - set rotation of all consoles rotate (r/w) - set rotation of the framebuffer, if supported. Currently, none of the drivers support this. This is probably temporary, since con_rotate and con_rotate_all are console-specific and has no business being under the fb device. However, until the console layer acquires it's own sysfs class, these attributes will temporarily reside here. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Return the line length via sysfs for fbdevJames Simmons2005-10-241-0/+8
| | | | | | | | This small patch returns the stride/line length of the framebuffer via sysfs. Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Display name of fbdev deviceJames Simmons2005-07-311-0/+8
| | | | | | | | This patch displays the name of the fbdev driver in sysfs. Down the road this will replace the current proc handle we have. Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: colormap fixes fixJon Smirl2005-07-291-7/+7
| | | | | | | | Fix a buffer overflow vunerabilty in previous cmap patch Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: colormap fixesJon Smirl2005-07-281-10/+72
| | | | | | | | | | | | Color maps have up to 256 entries. 4096/256 allows for 16 characters per line. The format for a cmap entry is "%02x%c%4x%4x%4x\n" %02x entry %c transp %4x red %4x blue %4x green You can read the color_map with cat fb0/color_map. Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] coverity: fix fbsysfs null pointer checkKAMBAROV, ZAUR2005-07-081-1/+1
| | | | | | | | | | | | Correctly test for a null pointer before going and dereferencing it. This defect was found automatically by Coverity Prevent, a static analysis tool. Signed-off-by: Zaur Kambarov <zkambarov@coverity.com> Cc: <linux-fbdev-devel@lists.sourceforge.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: remove unneeded fbsysfs printkJon Smirl2005-06-261-2/+0Star
| | | | | | | | Remove unneeded fbsysfs printk. Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Typo in fbdev sysfs support, virtual_sizeJon Smirl2005-06-141-1/+1
| | | | | | | | | It prints out x,x instead of x,y. Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Cc: "Antonino A. Daplas" <adaplas@hotpop.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] make some things staticAdrian Bunk2005-05-061-1/+1
| | | | | | | | | | This patch makes some needlessly global identifiers static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Arjan van de Ven <arjanv@infradead.org> Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2Linus Torvalds2005-04-171-0/+389
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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