| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1445965165-32146-14-git-send-email-abbotti@mev.co.uk> Date: Tue, 27 Oct 2015 16:59:22 +0000 From: Ian Abbott <abbotti@....co.uk> To: driverdev-devel@...uxdriverproject.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Ian Abbott <abbotti@....co.uk>, H Hartley Sweeten <hsweeten@...ionengravers.com>, linux-kernel@...r.kernel.org Subject: [PATCH 13/16] staging: comedi: comedi_test: allow read-back of AO channels COMEDI drivers often allow the last value written to a channel on an analog output subdevice to be read back via the "insn_read" handler. The "comedi_test" driver does not currently support that. It is a bit special because it loops back the last values written to the channel on the analog output subdevice to be read back via corresponding channels on the analog input subdevice. The "insn_read" handler for the analog input subdevice is `waveform_ai_insn_read()`. Set that as the "insn_read" handler for the analog output subdevice as well. Signed-off-by: Ian Abbott <abbotti@....co.uk> --- drivers/staging/comedi/drivers/comedi_test.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c index a750f84..468847a 100644 --- a/drivers/staging/comedi/drivers/comedi_test.c +++ b/drivers/staging/comedi/drivers/comedi_test.c @@ -457,6 +457,7 @@ static int waveform_attach(struct comedi_device *dev, s->maxdata = 0xffff; s->range_table = &waveform_ai_ranges; s->insn_write = waveform_ao_insn_write; + s->insn_read = waveform_ai_insn_read; /* do same as AI insn_read */ /* Our default loopback value is just a 0V flatline */ for (i = 0; i < s->n_chan; i++) -- 2.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists