Re: [sane-devel] PIXMA: New Protocol Timeouts
Hi Louis, In the meantime I had time to work a little on the imageclass sub-backend. Please have a look at these commits: c41640f bbd327f For the 1st possibly failing USB command I chose a reduced timeout duration of 2 sec. This code also affects the BJNP communications. But I haven't seen any problems testing a MF6140 device. Cheers, Rolf Am 27.02.2016 um 18:44 schrieb Louis Lagendijk: > On 2016-02-18 10:35, Rolf Bensch wrote: >> Hello Louis, >> >> However, some Pixma scanners usually timeout the 1st USB command. I >> already fixed this in pixma_imageclass.c by simply resending the 1st >> command (query_status()). >> >> To reduce the timeout loop from 8 sec to 1 sec for this 1st particular >> command, I'd like to load tmo in pixma_cmd_transaction() (-> >> pixma_common.c) from a parameter. >> >> I see 2 options: >> (1) a new parameter in the function call of pixma_cmd_transaction() >> (2) a new parameter with the default setting for 8 sec, e.g. in s->io >> >> Which one is smarter? >> >> Many thanks for your idea in advance. >> >> Cheers, >> Rolf >> >> Am 18.02.2016 um 08:54 schrieb Rolf Bensch: >>> Hello List, >>> >>> My recent commits to Sane's git repository contain some fixes which >>> affect USB and BJNP protocol timeouts. >>> >>> This affects *ALL* Canon PIXMA, imageCLASS, i-SENSYS and *SOME* CanoScan >>> scanning devices (please search your scanner here: >>> http://sanexe-project.org/lists/sane-backends-cvs.html#S-PIXMA). >>> >>> Background: >>> >>> Many users have reported and my experience was the same while debugging >>> a new scanner, that the 8 sec receive timeout needed approx. 160 sec to >>> lapse. This blocked the interface and was very annoying. >>> >>> I found out that the protocol timeouts were set to eternal 20 sec. So I >>> reduced the timeouts down to 1 sec (human immediately), for both >>> PIXMA_BULKIN_TIMEOUT and PIXMA_BULKOUT_TIMEOUT. Now the 8 sec receive >>> timeout loop is working again, also with available >>> sanei_usb_set_timeout(). >>> >>> Please report any problems caused by this fixes. >>> >>> Cheers, >>> Rolf >>> > Hi Rolf > Myapologies for not responding sooner, but I am on a businesstrip untill > end of coming week. I hope to be able to get back to you when I get home > Br, Louis > -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to sane-devel-requ...@lists.alioth.debian.org
Re: [sane-devel] PIXMA: New Protocol Timeouts
On 2016-02-18 10:35, Rolf Bensch wrote: Hello Louis, However, some Pixma scanners usually timeout the 1st USB command. I already fixed this in pixma_imageclass.c by simply resending the 1st command (query_status()). To reduce the timeout loop from 8 sec to 1 sec for this 1st particular command, I'd like to load tmo in pixma_cmd_transaction() (-> pixma_common.c) from a parameter. I see 2 options: (1) a new parameter in the function call of pixma_cmd_transaction() (2) a new parameter with the default setting for 8 sec, e.g. in s->io Which one is smarter? Many thanks for your idea in advance. Cheers, Rolf Am 18.02.2016 um 08:54 schrieb Rolf Bensch: Hello List, My recent commits to Sane's git repository contain some fixes which affect USB and BJNP protocol timeouts. This affects *ALL* Canon PIXMA, imageCLASS, i-SENSYS and *SOME* CanoScan scanning devices (please search your scanner here: http://sanexe-project.org/lists/sane-backends-cvs.html#S-PIXMA). Background: Many users have reported and my experience was the same while debugging a new scanner, that the 8 sec receive timeout needed approx. 160 sec to lapse. This blocked the interface and was very annoying. I found out that the protocol timeouts were set to eternal 20 sec. So I reduced the timeouts down to 1 sec (human immediately), for both PIXMA_BULKIN_TIMEOUT and PIXMA_BULKOUT_TIMEOUT. Now the 8 sec receive timeout loop is working again, also with available sanei_usb_set_timeout(). Please report any problems caused by this fixes. Cheers, Rolf Hi Rolf Myapologies for not responding sooner, but I am on a businesstrip untill end of coming week. I hope to be able to get back to you when I get home Br, Louis -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to sane-devel-requ...@lists.alioth.debian.org
Re: [sane-devel] PIXMA: New Protocol Timeouts
Hello Louis, However, some Pixma scanners usually timeout the 1st USB command. I already fixed this in pixma_imageclass.c by simply resending the 1st command (query_status()). To reduce the timeout loop from 8 sec to 1 sec for this 1st particular command, I'd like to load tmo in pixma_cmd_transaction() (-> pixma_common.c) from a parameter. I see 2 options: (1) a new parameter in the function call of pixma_cmd_transaction() (2) a new parameter with the default setting for 8 sec, e.g. in s->io Which one is smarter? Many thanks for your idea in advance. Cheers, Rolf Am 18.02.2016 um 08:54 schrieb Rolf Bensch: > Hello List, > > My recent commits to Sane's git repository contain some fixes which > affect USB and BJNP protocol timeouts. > > This affects *ALL* Canon PIXMA, imageCLASS, i-SENSYS and *SOME* CanoScan > scanning devices (please search your scanner here: > http://sane-project.org/lists/sane-backends-cvs.html#S-PIXMA). > > Background: > > Many users have reported and my experience was the same while debugging > a new scanner, that the 8 sec receive timeout needed approx. 160 sec to > lapse. This blocked the interface and was very annoying. > > I found out that the protocol timeouts were set to eternal 20 sec. So I > reduced the timeouts down to 1 sec (human immediately), for both > PIXMA_BULKIN_TIMEOUT and PIXMA_BULKOUT_TIMEOUT. Now the 8 sec receive > timeout loop is working again, also with available sanei_usb_set_timeout(). > > Please report any problems caused by this fixes. > > Cheers, > Rolf > -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to sane-devel-requ...@lists.alioth.debian.org
[sane-devel] PIXMA: New Protocol Timeouts
Hello List, My recent commits to Sane's git repository contain some fixes which affect USB and BJNP protocol timeouts. This affects *ALL* Canon PIXMA, imageCLASS, i-SENSYS and *SOME* CanoScan scanning devices (please search your scanner here: http://sane-project.org/lists/sane-backends-cvs.html#S-PIXMA). Background: Many users have reported and my experience was the same while debugging a new scanner, that the 8 sec receive timeout needed approx. 160 sec to lapse. This blocked the interface and was very annoying. I found out that the protocol timeouts were set to eternal 20 sec. So I reduced the timeouts down to 1 sec (human immediately), for both PIXMA_BULKIN_TIMEOUT and PIXMA_BULKOUT_TIMEOUT. Now the 8 sec receive timeout loop is working again, also with available sanei_usb_set_timeout(). Please report any problems caused by this fixes. Cheers, Rolf -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to sane-devel-requ...@lists.alioth.debian.org
