Re: [PARPORT] RedHat6 can't find my pp zip drive


Herke Jan Noordmans (herke@isi.uu.nl)
Mon, 21 Jun 1999 08:07:37 +0000


> > It looks like your parallel port is in 'ECP+EPP' mode, which PPA seems to > > have some problems with. Does it work again when you change the parallel
> > port mode in the BIOS?
>
> Someone reported that ECP+EPP broke with ppa 2.02 => ppa 2.03
> Will have a look and see what I did wrong (works fine for me - famous
> last words before being flamed).

I think that is true. If I switched the port mode to SPP, EPP, or ECP
all works fine. Only in ECP+EPP the ppa drivers cannot find the
zip-drive.
Many thanks for the tip.

Herke Jan

PS Output of dmesg for the different port modes (ECP DMA 3). Maybe this
helps.

## Setting parallel port to SPP:

ppa: Version 2.05 (for Linux 2.2.x)
ppa: parport reports no devices.
scsi : 0 hosts.
parport0: PC-style at 0x378 [SPP,PS2]
parport0: no IEEE-1284 device present.
ppa: Version 2.05 (for Linux 2.2.x)
ppa: Found device at ID 6, Attempting to use EPP
ppa: Found device at ID 6, Attempting to use PS/2
ppa: Communication established with ID 6 using PS/2
scsi0 : Iomega VPI0 (ppa) interface
scsi : 1 host.
  Vendor: IOMEGA Model: ZIP 100 Rev: J.03
  Type: Direct-Access ANSI SCSI revision: 02
Detected scsi removable disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: hdwr sector= 512 bytes. Sectors= 196608 [96 MB]
[0.1 GB]
sda: Write Protect is off
 sda: sda4

## Setting parallel port to EPP:

parport0: PC-style at 0x378 [SPP,PS2,EPP]
parport0: no IEEE-1284 device present.
ppa: Version 2.05 (for Linux 2.2.x)
ppa: Found device at ID 6, Attempting to use EPP
ppa: Communication established with ID 6 using EPP
scsi0 : Iomega VPI0 (ppa) interface
scsi : 1 host.
  Vendor: IOMEGA Model: ZIP 100 Rev: J.03
  Type: Direct-Access ANSI SCSI revision: 02
Detected scsi removable disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: hdwr sector= 512 bytes. Sectors= 196608 [96 MB] [0.1
GB]
sda: Write Protect is off
 sda: sda4

## Setting parallel port to ECP:

parport0: PC-style at 0x378 [SPP,ECP,ECPPS2]
parport0: no IEEE-1284 device present.
ppa: Version 2.05 (for Linux 2.2.x)
ppa: Found device at ID 6, Attempting to use EPP
ppa: Found device at ID 6, Attempting to use PS/2
ppa: Communication established with ID 6 using PS/2
scsi0 : Iomega VPI0 (ppa) interface
scsi : 1 host.
  Vendor: IOMEGA Model: ZIP 100 Rev: J.03
  Type: Direct-Access ANSI SCSI revision: 02
Detected scsi removable disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: hdwr sector= 512 bytes. Sectors= 196608 [96 MB] [0.1
GB]
sda: Write Protect is off
 sda: sda4

## Setting parallel port to ECP+EPP:

parport0: PC-style at 0x378 [SPP,EPP,ECP,ECPEPP,ECPPS2]
parport0: no IEEE-1284 device present.
ppa: Version 2.05 (for Linux 2.2.x)
WARNING - no ppa compatible devices found.
  As of 31/Aug/1998 Iomega started shipping parallel
  port ZIP drives with a different interface which is
  supported by the imm (ZIP Plus) driver. If the
  cable is marked with "AutoDetect", this is what has
  happened.
scsi : 0 hosts.

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This archive was generated by hypermail 2.0b3 on Mon 21 Jun 1999 - 04:07:03 EDT