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path: root/drivers/media/dvb/dvb-usb/m920x.c
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2011-11-18USB: convert drivers/media/* to use module_usb_driver()Greg Kroah-Hartman1-21/+1
This converts the drivers in drivers/media/* to use the module_usb_driver() macro which makes the code smaller and a bit simpler. Added bonus is that it removes some unneeded kernel log messages about drivers loading and/or unloading. Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Luca Risolia <luca.risolia@studio.unibo.it> Cc: Jean-Francois Moine <moinejf@free.fr> Cc: Frank Zago <frank@zago.net> Cc: Olivier Lorin <o.lorin@laposte.net> Cc: Erik Andren <erik.andren@gmail.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Brian Johnson <brijohn@gmail.com> Cc: Leandro Costantino <lcostantino@gmail.com> Cc: Antoine Jacquet <royale@zerezo.com> Cc: Jarod Wilson <jarod@redhat.com> Cc: Florian Mickler <florian@mickler.org> Cc: Antti Palosaari <crope@iki.fi> Cc: Michael Krufky <mkrufky@kernellabs.com> Cc: "David Härdeman" <david@hardeman.nu> Cc: Florent Audebert <florent.audebert@anevia.com> Cc: Sam Doshi <sam@metal-fish.co.uk> Cc: Manu Abraham <manu@linuxtv.org> Cc: Olivier Grenie <olivier.grenie@dibcom.fr> Cc: Patrick Boettcher <patrick.boettcher@dibcom.fr> Cc: "Igor M. Liplianin" <liplianin@me.by> Cc: Derek Kelly <user.vdr@gmail.com> Cc: Malcolm Priestley <tvboxspy@gmail.com> Cc: Steven Toth <stoth@kernellabs.com> Cc: "André Weidemann" <Andre.Weidemann@web.de> Cc: Martin Wilks <m.wilks@technisat.com> Cc: Tejun Heo <tj@kernel.org> Cc: Jose Alberto Reguero <jareguero@telefonica.net> Cc: David Henningsson <david.henningsson@canonical.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Joe Perches <joe@perches.com> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi> Cc: Hans Verkuil <hans.verkuil@cisco.com> Cc: Alexey Khoroshilov <khoroshilov@ispras.ru> Cc: Anssi Hannula <anssi.hannula@iki.fi> Cc: Rafi Rubin <rafi@seas.upenn.edu> Cc: Dan Carpenter <error27@gmail.com> Cc: Paul Bender <pebender@gmail.com> Cc: Devin Heitmueller <dheitmueller@kernellabs.com> Cc: "Márcio A Alves" <froooozen@gmail.com> Cc: Julia Lawall <julia@diku.dk> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Chris Rankin <rankincj@yahoo.com> Cc: Lee Jones <lee.jones@canonical.com> Cc: Andy Walls <awalls@md.metrocast.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Dean Anderson <linux-dev@sensoray.com> Cc: Pete Eberlein <pete@sensoray.com> Cc: Arvydas Sidorenko <asido4@gmail.com> Cc: Andrea Anacleto <andreaanacleto@libero.it> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-09-21[media] m920x: fix ERROR: do not use assignment in if conditionMichael Krufky1-9/+12
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-06[media] dvb-usb: refactor MFE code for individual streaming config per frontendMichael Krufky1-10/+33
refactor MFE code to allow for individual streaming configuration for each frontend Signed-off-by: Michael Krufky <mkrufky@kernellabs.com> Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-07-31[media] dvb-usb: prepare for multi-frontend support (MFE)Antti Palosaari1-7/+7
Change adapter FE pointer as array of FE pointers. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-05-20[media] m920x: get rid of on-stack dma buffersFlorian Mickler1-11/+22
usb_control_msg initiates (and waits for completion of) a dma transfer using the supplied buffer. That buffer thus has to be seperately allocated on the heap. In lib/dma_debug.c the function check_for_stack even warns about it: WARNING: at lib/dma-debug.c:866 check_for_stack Note: This change is tested to compile only, as I don't have the hardware. Signed-off-by: Florian Mickler <florian@mickler.org> Cc: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-05-20[media] rc: further key name standardizationJarod Wilson1-8/+8
Use the newly introduced KEY_IMAGES where appropriate, and standardize on KEY_MEDIA for media center/application launcher button (such as the Windows logo key on the Windows Media Center Ed. remotes). Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-12-29[media] rc: Name RC keymap tables as rc_map_tableMauro Carvalho Chehab1-12/+12
Remote keytables had different names all over the place. Part of the fault is due to a bad naming when rc subsystem was created, but there were lots of old names that were still here. Use a common standard for everything. Patch generated by this script: for i in `find drivers/staging -type f -name *.[ch]` `find include/media -type f -name *.[ch]` `find drivers/media -type f -name *.[ch]`; do sed s,ir_scancode,rc_map_table,g <$i >a && mv a $i; done for i in `find drivers/staging -type f -name *.[ch]` `find include/media -type f -name *.[ch]` `find drivers/media -type f -name *.[ch]`; do sed s,ir_codes_,rc_map_,g <$i >a && mv a $i; done for i in `find drivers/staging -type f -name *.[ch]` `find include/media -type f -name *.[ch]` `find drivers/media -type f -name *.[ch]`; do sed s,rc_key_map,rc_map_table,g <$i >a && mv a $i; done for i in `find drivers/staging -type f -name *.[ch]` `find include/media -type f -name *.[ch]` `find drivers/media -type f -name *.[ch]`; do sed s,rc_map_table_size,rc_map_size,g <$i >a && mv a $i; done Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02V4L/DVB: dvb-usb: prepare drivers for using rc-coreMauro Carvalho Chehab1-16/+22
This is a big patch, yet trivial. It just move the RC properties to a separate struct, in order to prepare the dvb-usb drivers to use rc-core. There's no change on the behavior of the drivers. With this change, it is possible to have both legacy and rc-core based code inside the dvb-usb-remote, allowing a gradual migration to rc-core, driver per driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02V4L/DVB: dvb-usb: get rid of struct dvb_usb_rc_keyMauro Carvalho Chehab1-4/+4
dvb-usb has its own IR handle code. Now that we have a Remote Controller subsystem, we should start using it. So, remove this struct, in favor of the similar struct defined at the RC subsystem. This is a big, but trivial patch. It is a 3 line delect, plus lots of rename on several dvb-usb files. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19V4L/DVB: rename all *_rc_keys to ir_codes_*_nec_tableMauro Carvalho Chehab1-9/+9
Several DVB drivers use a different name convention. As we're moving the keytables, we need to use the same convention on all places. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26V4L/DVB: m920x: Add support for Pinnacle PCTV310e cardMassimo Del Fedele1-0/+141
Adds support to Pinnacle PCTV310e hybrid tuner card, for DVB-T and remote control, still no analog video. [mchehab@redhat.com: fix CodingStyle issues] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-19V4L/DVB (13015): kmalloc failure ignored in m920x_firmware_download()Roel Kluin1-0/+2
Prevent NULL dereference if kmalloc() fails. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12598): dvb-usb: store rc5 custom and data at the same fieldMauro Carvalho Chehab1-34/+34
In order to be closer to V4L IR implementation, it is needed to replace u8 custom, data to: u16 scan This allows using non-rc5 mappings, like the 8 bit keycodes used on older protocols. It will also allow future implementations of rc6 keystrokes when needed. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-06-05V4L/DVB (7969): m920x: unaligned accessAl Viro1-3/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7538): Adds selectable adapter numbers as per module optionJanne Grunau1-8/+14
The adapter_nr module options can be used to allocate static adapter numbers on a driver level. It avoids problems with changing DVB apapter numbers after warm/cold boot or device unplugging and repluging. Each driver holds DVB_MAX_ADAPTER long array of the preferred order of adapter numbers. options dvb-usb-dib0700 adapter_nr=7,6,5,4,3,2,1,0 would result in a reversed allocation of adapter numbers. With adapter_nr=2,5 it tries first to get adapter number 2 and 5. If both are already in use it will allocate the lowest free adapter number. Signed-off-by: Janne Grunau <janne-dvb@grunau.be> Acked-by: Hermann Pitton <hermann.pitton@arcor.de> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7513): media/dvb/dvb-usb replace remaining __FUNCTION__ occurrencesHarvey Harrison1-6/+6
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-18V4L/DVB (5696): M920x: add missing error handling to prevent syslog spammingAapo Tahkola1-9/+18
Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-18V4L/DVB (5695): M920x: enable second adapter on LifeView TV Walker TwinAapo Tahkola1-3/+3
Enable second adapter on LifeView TV Walker Twin DVB-T USB2.0 Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-18V4L/DVB (5694): M920x: fix for Dposh devicesAapo Tahkola1-16/+22
Make sure devices manufactured by Dposh are not affected by previous hw pid filtering changes Doing so might crash it. Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-18V4L/DVB (5693): M920x: second endpoint also needs to be changed to alt settingAapo Tahkola1-14/+17
Spotted by Jeremy Nysen. Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-18V4L/DVB (5692): M920x: attempt to fix hw pid filters on second endpointAapo Tahkola1-19/+38
Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5614): M920x: Disable second adapter on LifeView TV Walker TwinNick Andrew1-3/+3
Disable second adapter on LifeView TV Walker Twin while it doesn't work properly. Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Nick Andrew <nick@nick-andrew.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5613): M920x: loosen up 80-col limitAapo Tahkola1-40/+23
Do not follow 80-col limit where it would cause inconsistency. Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5612): M920x: rename function prefixes from m9206_foo to m920x_fooAapo Tahkola1-63/+63
Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5611): M920x: replace deb_rc with debAapo Tahkola1-21/+20
deb_rc is used by the dvb-usb core framework. This patch replaces all occurances of deb_rc with deb, in m920x.c, so that its clear that we're not using dvb-usb's deb_rc. Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5610): M920x: remove duplicated codeMichael Krufky1-87/+44
Some of the devices supported by the m920x driver have identical functions used for tuner_attach and frontend_attach. This patch consolidates the functions in question, and updates the debug code to be generic for each. This patch decreases the size of the kernel. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5609): M920x: group like functions togetherMichael Krufky1-100/+101
- Group the tuner configurations together. - Group the demod configurations together. - Group the device-specific initialization functions together. - Group demod_attach functions together. - Group tuner_attach functions together. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5608): M920x: various whitespace cleanupsMichael Krufky1-102/+127
- 80-column cleanups - spaces between operators - tabbing style Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5607): M920x: Initial support for devices likely manufactured by DposhAapo Tahkola1-0/+49
These devices are sold by various companies and chains not involved in hardware manufacturing business. This particular device owned by winisch (from irc) had a sticker with text "TCM 234292" on it. This device was never opened so it is possible that Dposh did not manufacture this stick. However, the bundled software and their product line points into that direction. Also thanks to Michael Krufky for spotting this hw filtering problem and thus avoiding hair loss. Hardware pid filters and the bundled remote controller are not currently supported on this device. Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5606): M920x: add "c-basic-offset: 8" to help emacs to enforce tabbingMichael Krufky1-0/+5
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5605): M920x: Add support for LifeView TV Walker TwinNick Andrew1-15/+265
Add support for "LifeView TV Walker Twin" (USB IDs 10fd:0513, 10fd:0514) Signed-off-by: Nick Andrew <nick@nick-andrew.net> Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5459): M920x: add support for Anubis Electronics / MSI Digi Vox Mini IIPierre Willenbrock1-1/+82
Add support for Anubis Electronics "Lifeview" (USB-ID: 0x10fd:0x1513) Signed-off-by: Pierre Willenbrock <pierre@pirsoft.de> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5449): M920x: add error messages for debugging purposesPierre Willenbrock1-2/+8
Signed-off-by: Pierre Willenbrock <pierre@pirsoft.dnsalias.org> Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5448): M920x: rename megasky_identify_state to m920x_identify_stateAapo Tahkola1-5/+5
This function should work for all m920x-based devices. Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5428): M920x: Detect zero-length I2C messages and fix a typoTrent Piepho1-2/+7
Change a 00 to just 0 Detect zero-length I2C messages and return not supported. I think I know how to send one, but the problem is getting the slave's ack. The only point of a zero-length message is for probing; too see if the slave will ack its address. Since we don't know how to get the ack, we can't support zero-length messages in a useful way, so it's probably best to just return not supported for them. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5427): M920x: Improve I2C operationsTrent Piepho1-26/+26
Write some better documentation about what might be known about how the m920x I2C works, since a datasheet is lacking. The I2C xfer function should now handle more types of I2C transactions than it could before. Those it can't, will return error codes instead of being executed incorrectly. Multi-byte reads were not being done correctly, which should be fixed. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5426): M920x: remove unneeded codeAapo Tahkola1-1/+0
Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5425): M920x: rework driver code to allow for different devicesAapo Tahkola1-23/+28
Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5423): M920x: i2c cleanupsAapo Tahkola1-43/+26
- Implement m920x i2c as suggested by Pierre Willenbrock - remove "magic" hack - r/w bit is not part of the i2c address - move hardware remarks to header file Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5142): M920x: move filter caps from device caps to adapter capsMichael Krufky1-2/+4
Move filter caps from device caps to adapter caps for the megasky driver. This fixes usb1.1 operation. Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5141): M920x: group tuner / demod callback functions togetherMichael Krufky1-62/+63
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5140): Whitespace / 80-column cleanupsMichael Krufky1-8/+16
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5139): M920x: Fix tuner identification bug with qt1010 moduleAapo Tahkola1-14/+32
Fixes qt1010 identification bug with megasky caused by the Quantek QT1010 tuner module patch. Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5137): Dvb: add new qt1010 tuner moduleAntti Palosaari1-1/+12
QT1010: - old qt1010-code totally rewritten and put in own kernel module - same enhancements as my earlier QT1010 125kHz patch - tuner initialization - register 1f calculation - register 20 calculation - register 25 calculation m920x: (MSI Megasky) - use new QT1010 module instead of old code Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5136): M920x: correct oops when loading moduleMichael Krufky1-3/+3
move .caps from the adapter properties to the device properties. Thanks to Martin Schwier for confirming this fix. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5134): M920x: fix build in hg tree / other trivial fixesMichael Krufky1-2/+0
- removed extra newline - removed NULL entry - fixed versions.txt Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5133): M920x: move qt1010_tuner_attach function into qt1010.hMichael Krufky1-10/+1
The megasky_tuner_attach function is not specific to this device. This patch renames it to qt1010_tuner_attach and moves it into the qt1010 header file. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5132): M920x: more trivial cleanupsPatrick Boettcher1-10/+1
- Removed some needless brances - Removed an unneeded check for adapter[0] - Removed unneeded declaration of .generic_bulk_ctrl_endpoint = 0x01 Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5131): M920x: more cleanupsMichael Krufky1-58/+46
Some cleanups and suggestions from Patrick Boettcher. Dropped the mutex in m9206_rc_query using #if 0, because M9206_CORE, M9206_I2C, M9206_FILTER and M9206_FW can be accessed concurrently. Thanks to both Aapo Tahkola and Patrick Boettcher. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5130): M920x: misc updates and fixesAapo Tahkola1-88/+125
- hardware pid filtering no longer enabled unless in usb 1.x mode - more responsive rc handling - some minor bug fixes and code refolding - m9206_write delay dropped (doesn't seem to be needed) Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>